- Mark Scheme Question Answer Marks 1 oe final answer 2 2 52 1 3 7 3 / AO Element Notes B1 for Guidance or M2 for 166 + 2x = 180 or better or M1 for 97 – 3x + 69 + 5x = 180 oe 4 2 B1 for any three of x 2, –5x, –7x, +35 5 2 B1 for or or 6 2 final answer B1 for partial factorisation or 7 M2 for better or M1 for oe or better A1 for 28 4 or B1 for or If 0 scored, SC1 for the correct answer with no algebra - Mark Scheme Question 8 Answer Marks 4 28, −34 / AO Element Notes Guidance Trial and improvement OR B1 for x + y = –6 oe B1 for x – y = 62 oe B1 for 28 or −34 9 2 10(a) 1 10(b) 1 10(c) 1 11 12 final answer [y = ] 5x – 4 2 1 B1 for 0) M1 for or (n, k ≠ or - Mark Scheme Question 13 Answer Marks 3 1.8 or / AO Element Notes M2 for or M1 for OR M2 for oe 14 final 3 B2 for answer or or or B1 for 15 990 3 M2 for correct complete area statement e.g. oe or M1 for one area calculation Guidance - Mark Scheme Question Answer Marks 3 16 / AO Element Notes M2 for Guidance , or M1 for , or 3 17 B2 for correct expansion and simplification of two of the brackets or B1 for correct expansion of two brackets with at least 3 terms correct 18 [p = ] –13 2 M1 for better or - Mark Scheme Question Answer Marks 4 19 / AO Element Notes Guidance B3 for any two correct OR B1 for B2 for or or and or with incorrect inequality signs or B1 for or or SC3 for > instead of ≥ etc. 20 4 2 M1 for or or 21 −2 2 M1 for (–3)(–2) + (–8) - Mark Scheme Question Answer 22 final answer Marks 5 / AO Element Notes Guidance B2 for or B1 for where or B2 for or B1 for or 23(a) 2 B1 for 23(b) 2 B1 for 24 3 M1 for correct rearrangement for y or y 2 term or or M1 for correct square root M1 for correct division by 2 or 25 –14 2 M1 for better or or or better - Mark Scheme Question Answer 26 27 16 Marks / AO Element Notes 2 B1 for correct unsimplified answer 3 M1 for M1 for OR M2 for oe 28(a) Correct lines and correct region clear 5 B2 for 2x + y = 8 correctly ruled or B1 for ruled line with negative gradient B1 for y = x correctly ruled B1 for x = 2 correctly ruled 28(b) 6 1 29(a) 0.3 oe 1 Guidance - Mark Scheme Question 29(b) Answer 3060 Marks 3 / AO Element Notes Guidance M2 for oe or M1 for one correct part area 30 [y =] 1 3 M1 for M1 for OR M2 for oe 2 31(a) B1 for or or k = −9 31(b) 19.4 or 19.39… 2 M1FT for − 1.39 or − 1.392… A1 for 32(a) 4 7 4 2 or B1 for one correct - Mark Scheme Question 32(b) Answer Correct curve Marks 4 / AO Element Notes Guidance B3FT for 6 or 7 points correct or B2FT for 4 or 5 points correct or B1FT for 2 or 3 points correct 32(c) x = 1 oe 1 32(d) −1.9 to −1.7 and 3.7 to 3.9 2 B1 for each 33 [x =] 2.5 2 M1 for 34 8 2 M1 for correct attempt e.g. 12 + 14 + 16 …. 35 [h =] 8.4 3 B2 for or or or or B1 for or M1 for - Mark Scheme Question 36 Answer Marks / AO Element Notes Guidance 1 27 – 9x 37 final answer 2 B1 for 2c or −3d 38(a) oe 2 B1 for each 3 M1 for correctly eliminating one variable oe 38(b) [x =] 20 [y =] 12 B1 for one correct 39 final answer 2 40(a) 25, 87, 329 circled 1 40(b) 7 1 40(c) 8 2 B1 for or M1 for or B1 for at least four of 39, 78, 117, 156, 195, 234, 273, 312 40(d)(i) oe 2 B1 for or , - Mark Scheme Question Answer Marks / AO Element Notes Guidance 40(d)(ii) 79 1 FT their (d)(i) if linear 40(d)(iii) 175 2 M1 for or or 40(e)(i) oe 2 B1 for or , 40(e)(ii) 174 gives house numbers that are zero/negative 2 B1 for each If 0 scored, SC1 for 175 [Total: 128] - Mark Scheme Question Answer Marks 3 1 / AO Element Notes M2 for Guidance , or M1 for , or 2(a) 19 2(b) oe final answer 2 M1 for or for 2 M1 for correct first step soi or or 3 [p = ] –13 2 M1 for better 4 5 – 2x final answer 2 M1 for 2(1 – x) + 3 oe 5(a) 82 2 M1 for or soi by or g(9) isw - Mark Scheme Question Answer 5(b) final answer Marks 2 / AO Element Notes Guidance M1 for or or 5(c) [a =] 1, [b =] 2, [c =] 2 3 B2 for or M1 for 5(d) 3 oe M2 for or M1 for f(x) = 4 or for better 6(a) 6(b) 6(c) soi or 1 −3 2 oe final answer 2 M1 for soi M1 for isw 6(d) oe final answer 2 M1 for a correct first step , or - Mark Scheme Question Answer 6(e) final answer Marks 3 / AO Element Notes Guidance M1 for oe isw B1 for common denominator 6(f)(i) M1 for 3 B1 for A1 for oe leading to with no errors and must show with no omissions after this - Mark Scheme Question 6(f)(ii) Answer B2 for Marks 4 / AO Element Notes B1 for or better oe or B1 for oe or B1 for each B2 for 0.17 and 1.08 final ans If 0 scored, SC1 for answer 0.2 and 1.1 or answer − 0.17 and −1.08 or 0.174... and 1.075 to 1.076 seen or 0.17 and 1.08 seen in working 7(a) 27 2 M1 for 33x seen 7(b) 3 2 M1 for 7 + 3x = 24 2 M1 for or or 7(c) oe final answer or Guidance - Mark Scheme Question 8 Answer 2 5 9(a) final answer 9(b) Marks final answer / AO Element Notes M1 for 1 2 M1 for correct first step , e.g. , 10(a) 0 1 10(b) 5 2 M1 for or better or 10(c) oe final answer 2 or M1 for or or or better 10(d) 2 M1 for oe 10(e) 2 B1 for three terms from correct Guidance - Mark Scheme Question Answer Marks / AO Element Notes 10(f) 27 2 M1 for 11(a) −17 2 M1 for f(11) seen or 5 − 2(5 − 2x) or better 11(b)(i) 4x 2 + 8 oe 1 11(b)(ii) oe final answer 2 M1 for x = 5 − 2y or 2x = 5 − y or y – 5 = –2x or 12(a) 26 12(b) 12(c) 5 12(d) oe 2 M1 for g(5) or for 2 M1 for 2 M1 for 2x − 3 = 7 2 M1 for or or 13(a) 1 2 oe M1 for h(0) or for Guidance - Mark Scheme Question 13(b) Answer 2 8 13(c) Marks or final answer 3 / AO Element Notes Guidance M1 for g(¼) or for M2 for or better or or better or or M1 for or or or 13(d) 5 1 14(a) 2 2 M1 for f(5) or 7− (7 − x) or better 14(b) 30 − 4x final answer 2 M1 for 4(7 − x) + 2 or better or for correct answer then spoilt - Mark Scheme Question Answer Marks / AO Element Notes 14(c) 15 – 4x 2 final answer 2 M1 for 15 – (2x)2 or better or for correct answer then spoilt 15(a) [0].70 cao 2 B1 for [0].696 to [0].697 15(b) 4 cao 1 16(a) 1 16(b) 2 M1 for correct first algebraic step e.g. y – 5 = 3x or or better or for interchanging x and y, e.g. x = 3y + 5, this does not need to be the first step 16(c) 9x + 20 cao final answer 2 17(a) −13 1 17(b) 1 M1 for 3(3x + 5) + 5 Guidance - Mark Scheme Question 17(c) 17(d) Answer 9x − 10 cao final answer oe Marks / AO Element Notes Guidance 2 M1 for 2 M1 for correct first step e.g. or or or better or for interchanging x and y, e.g. , this does not need to be the first step [Total: 101] - Mark Scheme Question Answer Marks 1 Acute 1 2(a) Chord 1 2(b) 16 1 3 7 3 AO Element / Notes M2 for 166 + 2x = 180 or better or M1 for 97 – 3x + 69 + 5x = 180 oe 4 109 3 M1 for (180 – 38) ÷ 2 oe M1 for 180 – their ACB 5 Three correct lines on first shape 3 AND B2 for three correct lines on first shape or B1 for one or more correct lines and no wrong lines One correct line on second shape B1 for one correct line on second shape 6 2 1 Guidance - Mark Scheme Question Answer Marks 7 M1 for angle ACB = 65° or angle RPQ = 37° 2 / AO Element Notes A1 for 2 pairs of equal angles oe 2 8(a) B1 for or 8(b) Ruled line perpendicular to L 1 9 140 2 10 Correct shape drawn 1 11 Correct shape drawn 2 12 Kite or isosceles trapezium 1 13 2 1 14 Circle with 3.8 cm radius drawn 2 M1 for 11.4 ÷ 1.5 or 5.7 ÷ 1.5 15(a) 72 2 B1 for each Corresponding angles M1 for 360 ÷ 9 M1 for 3 sides correctly reflected or 4 correct vertices Guidance - Mark Scheme Question 15(b) Answer 65 Marks AO Element / Notes 2 B1 for each Angles [at a point] sum [to] 360 oe 16 116 2 M1 for angle ACB = 32 soi 17 Complete explanation with geometrical reasons 3 B1 for RQP = x° QR bisects angle PQB B1 for RPQ = x° alternate segment theorem B1 for triangle PQR has two equal angles both less than 60 (so can’t be equilateral) so must be isosceles Guidance - Mark Scheme Question 18 Answer 16.6 or 16.64… Marks 5 / AO Element Notes Guidance M2 for oe or M1 for scale factor or oe soi Then Pythagoras method: and M2 for or or M1 for or OR alternative trigonometry method e.g. M1 for and M1 for - Mark Scheme Question 19 Answer [x =] 55 Marks 2 / AO Element Notes Guidance B1 for each [y = ] 24 20(a) 49 1 20(b) 98 1 20(c) 20 1 20(d) 70 1 FT 90 – their (c) 21 25 2 B1 for 130 seen FT 2 × their (a) or M1 for 50 ÷ 2 22 5 3 M2 for oe or M1 for or oe 23(a) Equilateral 1 23(b)(i) 4.1 to 4.5 1 23(b)(ii) 10.25 to 11.25 2 M1 for 0.5 × 5 × their (b)(i) - Mark Scheme Question 23(b)(iii) Answer 61.5 to 67.5 Marks 2 / AO Element Notes FT their (b)(ii) B1 for 6 seen 24(a) Correct position of town B 2 B1 for correct bearing B1 for correct distance 24(b)(i) Correct triangle drawn 3 B2 for correct triangle with no or wrong arcs or correct position of C with arcs (no triangle) or B1 for one line correct length drawn or 7 and 5 seen 24(b)(ii) 38 to 42 1 25(a) Tangent 1 25(b)(i) final answer FT their measured angle at C 2 M1 for 25(b)(ii) 40 2 B1 for angle OBC = 40° or angle BOG = 140° 25(b)(iii) 7.68 or 7.679 to 7.680.... 2 FT their (b)(ii) and (b)(i) M1 for Guidance - Mark Scheme Question Answer Marks 25(c)(i) Angle [between] tangent [and] radius 1 25(c)(ii) B1 for 180 – 140 or 90 – their (b)(ii) 3 / AO Element Notes M1 for oe A1 for [BC =] 13.109[...] 25(c)(iii) 6.11 or 6.112 to 6.114 3 M1 for [OB 2 =] 13.112 + 112 A1 for 17.1 or 17.11 or 17.112 to 17.114 OR M1 for oe A1 for 17.1 or 17.11... or 17.112 to 17.113 26(a) Kite 1 26(b)(i) Translation 2 B1 for each Guidance - Mark Scheme Question 26(b)(ii) Answer Reflection Marks AO Element / Notes 2 B1 for each 3 B1 for each x = 0.5 oe 26(b)(iii) Rotation 90° clockwise oe [centre] (0, 0) oe 26(c)(i) (−5, −6) 1 26(c)(ii) Image at (−5, 0), (−2, 3), (7, 0),(−2, −3) 2 B1 for correct size, wrong position or correct shape with incorrect scale factor 27 55 2 M1 for 180 − 70 28(a) Cuboid 1 28(b) 10 2 29(a) (−1, −2) 1 1 29(b) 29(c) C marked at (3, 3) 1 M1 for 5 × 2 [× 1] Guidance - Mark Scheme Question Answer Marks AO Element / Notes 1 29(d)(i) FT their (b) + 1 29(d)(ii) 29(e)(i) Correct parallelogram drawn 1 FT their (c) provided ABCD forms a parallelogram 29(e)(ii) 30 2 FT the area of their ABCD provided it is a parallelogram. cm 2 B1 for each 30 [a =] 32 3 B1 for each 3 B2 for 3 or 4 further correct faces drawn in the correct places [b =] 98 [c =] 82 31 Correct ruled net of cuboid or B1 for 1 or 2 further correct faces drawn in the correct places 32(a) Hexagon 1 32(b) 6 1 Guidance - Mark Scheme Question 33(a) Answer 24 Marks 3 / AO Element Notes Guidance M2 for where k = 1, 2 or 13 or B1 for soi 33(b) 15 1 FT if is an integer 34 Correct ruled triangle with arcs 2 M1 for correct triangle without arcs or for correct arcs and no lines 35 85 2 B1 for either angle in alt segment = 58 36 72 2 B1 for either angle at J or H = 108 or angle at F = 72 37(a) 36 2 M1 for or oe - Mark Scheme Question 37(b) Answer 30 Marks 3 / AO Element Notes Guidance M2 for oe or M1 for 38 12 2 M1 for or oe 39 B1 for OA = OB = OC = OD Radii 3 B1 for AB = CD chords equidistant from centre are equal B1 for SSS implies congruent 40 45 2 B1 for angles at M or K = 45 or angle at L = 90 [Total: 132] - Mark Scheme Question Answer 1 2 86 Marks / AO Element Notes Guidance 2 M1 for 2 M1 for correct method to find the perimeter e.g. (8 + 3) × 2 × 5 – 3 × 8 If 0 scored, SC1 for answer 98 3 45 2 4 5300 1 5 141 or 141.3 to 141.4 4 M1 for oe M1 for M2 for or M1 for 6 3.7[0] or 3.689 to 3.699… 3 M2 for or M1 for oe - Mark Scheme Question 7 Answer 25.6 or 25.59 to 25.60… Marks 4 / AO Element Notes Guidance M3 for or M2 for oe or M1 for oe 8 208 1 9 15.5 or 15.48 to 15.49 3 B2 for 1550 or 1548 to 1549 or M2 for or M1 for 10(a) Equilateral 1 10(b)(i) 4.1 to 4.5 1 10(b)(ii) 10.25 to 11.25 2 M1 for 0.5 × 5 × their (b)(i) - Mark Scheme Question 10(b)(iii) Answer 61.5 to 67.5 Marks 2 / AO Element Notes FT their (b)(ii) B1 for 6 seen 11(a) Tangent 11(b)(i) final answer 1 2 M1 for 11(b)(ii) 40 2 B1 for angle OBC = 40° or angle BOG = 140° 11(b)(iii) 7.68 or 7.679 to 7.680.... 2 FT their (b)(ii) and (b)(i) M1 for 11(c)(i) Angle [between] tangent [and] radius 1 11(c)(ii) B1 for 180 – 140 or 90 – their (b)(ii) 3 M1 for oe A1 for [BC =] 13.109[...] Guidance - Mark Scheme Question Answer 11(c)(iii) 6.11 or 6.112 to 6.114 Marks 3 / AO Element Notes M1 for [OB 2 =] 13.112 + 112 A1 for 17.1 or 17.11 or 17.112 to 17.114 OR M1 for oe A1 for 17.1 or 17.11... or 17.112 to 17.113 12 8 3 M1 for 384 ÷ 6 M1dep for 13 168 3 M2 for (7 × 4 ÷ 2) × 12 oe or M1 for (7 × 4 ÷ 2) or their area × 12 14(a) 28 1 14(b) 192 2 M1 for oe or B1 for 16 and 12 or 4 tiles = 1 m2 soi 15(a) Cuboid 1 Guidance - Mark Scheme Question Answer Marks 15(b) 10 2 16(a) (−1, −2) 1 Notes M1 for 5 × 2 [× 1] 1 16(b) 16(c) AO Element / C marked at (3, 3) 1 1 16(d)(i) FT their (b) + 1 16(d)(ii) 16(e)(i) Correct parallelogram drawn 1 FT their (c) provided ABCD forms a parallelogram 16(e)(ii) 30 2 FT the area of their ABCD provided it is a parallelogram. cm 2 B1 for each Guidance - Mark Scheme Question 17 Answer 41.1 or 41.09 to 41.112 Marks 5 / AO Element Notes Guidance M1 for M2 for or M1 for M1 for 18 25 3 B1 for height is 5 [cm] M1 for oe 3 19 M2 for oe or M1 for oe If 0 scored, SC1 for final answer kx 2 20(a) 39[.0] or 39.03 to 39.04… 3 M2 for or M1 for - Mark Scheme Question 20(b) Answer 2.71 or 2.708… Marks / AO Element Notes 4 M3 for oe or M2 for oe or M1 for oe seen 20(c)(i) 3.67 or 3.666 to 3.667 2 M1 for or better or for or better Guidance - Mark Scheme Question 20(c)(ii) Answer 100 or 100.0 to 100.1… final answer Marks 4 / AO Element Notes Guidance M3 for or M2 for or M1 for 21 3.375 cao 3 M2 for better or M1 for 22 3.63 or 3.627 to 3.628 3 M2 for or M1 for or - Mark Scheme Question Answer 23 or or Marks 3 / AO Element Notes B2 for 4R 2 = 9x 2 oe or better or M1 for 24 2700 4 M2 for 15 × 2.5 × 20 × 60 × 60 or M1 for 15 × 2.5 × 20 M1 for their volume ÷ 1000 If 0 scored, SC1 for figs 27 with no working 25 576 3 M2 for [2 ×] (15 × 4 + 12 × 4 + 12 × 15) oe or M1 for one correct area, 15 × 4 or 12 × 4 or 12 × 15 26 452 or 452.3 to 452.4... 2 27 460 1 M1 for Guidance - Mark Scheme Question 28 Answer 3500 Marks 2 / AO Element Notes Guidance B1 for each 14 000 29 6.28 or 6.283 to 6.284 3 M2 for oe and oe or M1 for oe or or 30 2592 4 oe oe M3 for oe or M2 for 1.2 × 60 × 60 × 6 oe or M1 for figs 12 × figs 6 or 60 × 60 or correct conversion e.g. their value in cm3 ÷ 1000 their value in m3 × 1000 1.2 × 100 6 ÷ 10 000 - Mark Scheme Question Answer Marks / AO Element Notes 31(a) Two correct lines drawn 2 B1 for one correct, no extras or two correct and one extra 31(b) 2.16 2 M1 for 1.2 × 1.8 32(a) B2 for 40 3 M1 for 5 × 4 × 2 3 B2 for 4 more correct faces in correct position B1 for cm3 32(b) Correct net B1 for 2 or 3 more correct faces in correct position 33 384 2 M1 for 8 × 8 [ × 6] 34 14.7 2 M1 for oe 35 436 500 1 36 36.7[0] 1 37 5 2 M1 for 180 ÷ 62 oe Guidance - Mark Scheme Question Answer Marks 38 23.1 or 23.137 to 23.139 or 23.14 3 / AO Element Notes M2 for Guidance oe or M1 for 39 40 2 40 160 1 M1 for 5 × 4 × 2 [Total: 138] - Mark Scheme Question Answer Marks / AO Element Notes Guidance 1 34 2 M1 for 12 + 0.5 or 4 + 0.5 or better seen 2 33 500 2 M1 for oe 3 25 × 34 × 132 1 4 56 2 B1 for 56k or lists of multiples of 8 and 14 (at least 3 of each) 5(a) Correct Venn diagram 3 B2 for 8 or 9 numbers correct or B1 for 6 or 7 numbers correct 5(b)(i) 41, 43, 47 1 FT their Venn diagram - Mark Scheme Question Answer Marks AO Element / Notes 5(b)(ii) 44, 46, 49, 50 1 FT their Venn diagram 5(c) 0 1 FT their Venn diagram 1 6 7(a) 8 1 7(b) 26 244 1 7(c) 1 1 8(a) Jan 1 8(b) 9 1 Guidance - Mark Scheme Question Answer Marks / AO Element Notes Guidance 8(c) 9.5 2 M1 for correctly ordering at least 7 months from one end or identifying the middle two, 8 and 11 8(d) 8.8 3 M1 for attempt to add the temperatures ÷ 12 A1 for 8.83[3.......] After M1 A0, award SC1 for their mean correct to 2 sf 9 3 cao B2 for oe as final answer or M1 for or oe or B1 for 10 18.4% 2 M1 for 3 in correct order or for three of , [18.4% =] 0.184, , - Mark Scheme Question Answer 11 12 oe 6 Marks / AO Element Notes Guidance 1 3 B2 for or 5.25 shown in working isw or M1 for soi by answer 5 13 0.048 cao 1 14(a) M1 for 3 A1 for 13939… oe A2 for 118.06… 14(b) 67.8 or 67.9 or 67.83 to 67.88 3 M2 for oe or M1 for oe 14(c)(i) 255 3 B1 for bearing of B from A is 75 soi M1 for 180 + 75 oe - Mark Scheme Question Answer Marks / AO Element Notes Guidance 14(c)(ii) [00]7.2 2 M1 for their (c)(i) – their (b) –180 14(d) 11.8 or 11.82 to 11.83 3 M1 for 115 ÷ 35 oe M1 for their speed in m/s × 60 × 60 ÷ 1000 14(e) 76.1 or 76.08 to 76.09 3 M2for oe or M1 for distance required is perpendicular to AC soi 15(a) 23.27 final answer 2 15(b) 2.75 final answer 3 M1 for 9 × 2.97 soi M2 for oe or M1 for 108[%] associated with 2.97 oe 16 4[.00...] 3 M2 for or M1 for oe or better - Mark Scheme Question Answer Marks 17 18 final / AO Element Notes 2 M1 for 3 B2 for Guidance answer or or or B1 for 19 3 or final answer B1 for common denominator or M1 for or better 2 20 21(a) oe 21(b) M1 for A1 for one step shown to 1 oe 2 B1 for or - Mark Scheme Question 21(c) B1 for Answer Marks ruled 5 B2 for Notes Broken line Solid line B1 for line passing through (0, 15) or (10, 0) ruled B1 for AO Element / ruled B1 for correct region indicated Solid line 21(d) 412 2 M1 for (4, 9) identified or for evaluation 40x + 28y for an integer point in the region (x > 0 and y > 0) 22(a) 40 54 4 B1 for each 2 B1 for a quadratic expression or for 2nd common difference 2 (at least 2 shown) or for 2 correct equations seen or for subtracting n 2 2 M1 for their (b) = 10300 seen 26 34 22(b) 22(c) or 100 oe Guidance - Mark Scheme Question Answer 22(d) Marks 2 oe / AO Element Notes Guidance B1 for each or M1 for one correct equation or for 2nd difference = 1 soi (at least 2 shown) and oe 3 23 M2 for , or M1 for , or 24(a) oe and 6 B2 for Or B1 for one correct M1 for derivative = 0 or their derivative = 0 M1 for B1 for and and 50 - Mark Scheme Question 24(b) Answer minimum Marks 3 AO Element Notes Guidance B2 for one correct with reason or M1 for correct attempt e.g. 2nd derivatives, gradients or sketching maximum with correct reasons 2 25(a) / M1 for or or a = 5 25(b) Sketch of U-shaped parabola with a minimum indicated at (–5, –11) with no part of graph in 4th quadrant 3 FT their provided in that form B1 for U shape curve B1FT for turning point at (–5, k) or (k, –11) [Total: 106] - Mark Scheme Question Answer Marks 1(a) 20 [< t ] 25 1 1(b) 25 [< t ] 30 1 1(c) 28.3 or 28.33.. 4 AO Element / Notes M1 for 22.5, 27.5, 32.5, 37.5, 42.5 soi M1 for Σ fx where x is in the correct interval including boundaries M1dep for Σ fx ÷ 120 or Σ fx ÷ (44 + 32 + 28 + 12 + 4) 1(d) 2(a) 2(b)(i) 1 oe isw 1 oe 2 M1 for A1 for oe Guidance - Mark Scheme Question 2(b)(ii) Answer oe Marks 4 / AO Element Notes M3 for oe or M2 for or oe or M1 for for one correct product other than 1 3(a)(i) 3(a)(ii) 1.62 or 1.623… nfww 4 M1 for 1.35, 1.45, 1.55, 1.65, 1.75 1.85 soi M1 for Σ fx M1 dep for their Σ fx ÷ 120 3(b)(i) oe 1 Guidance - Mark Scheme Question 3(b)(ii) Answer oe Marks 4 / AO Element Notes Guidance M3 for or M2 for isw or M1 for After 0 scored, SC1 for answer or oe 3(c)(i) 55, 79, 106, 120 2 B1 for 2 or 3 correct 3(c)(ii) Correct diagram 3 B1 for correct horizontal plots B1FT for correct vertical plots B1FT dep on at least B1 for reasonable increasing curve or polygon through their 6 points If 0 scored SC1 for 5 out of 6 points correctly plotted - Mark Scheme Question Answer Marks 3(d)(i) 1.62 to 1.63 1 3(d)(ii) 1.57 to 1.58 2 4(a) oe 4(b) oe Notes Guidance B1 for 48 soi 1 0 1 5 0 1 oe AO Element 1 4(c) 6 / 3 M2 for or M1 for or 7 8(a) oe oe 2 2 M1 for B1 for oe or provided fraction is less than 1 - Mark Scheme Question 8(b) Answer Marks / AO Element Notes 1 46 9(a) 1 9(b)(i) 1 FT their (a) dep on (a) being an expression in r 3 FT their (b)(i) 9(b)(ii) M1 for or better nfww M1 for Strict FT their expansion to a quadratic then equating to 0.4 and then collecting to 3 terms on ‘one side’ OR OR oe A1 for Strict FT their expansion to a quadratic = 0.4 all multiplied by 10 no errors or omissions seen Guidance - Mark Scheme Question 9(b)(iii) Answer Marks 3 B2 for AO Element / Notes or B2 for e.g. 5r(2r – 1) – 9(2r – 1) and then 5r – 9 = 0 and 2r – 1 = 0 or B1 for 5r(2r – 1) –9(2r – 1)[= 0] or 2r(5r – 9) –1(5r – 9)[= 0] or (5r + a)(2r + b) [= 0] where a, b are integers and ab = +9 or 2a + 5b = – 23 If 0 scored, SC1 for 5r – 9 and 2r – 1 seen but not in factorised form B1 for 9(b)(iv) 0.8 or oe 1 Guidance - Mark Scheme Question 10 Answer oe Marks 4 / AO Element Notes M3 for or M2 for or or M1 for seen or seen If 0 scored, SC1 for oe 11(a) 2 B1 for either numerator or denominator correct Guidance - Mark Scheme Question 11(b)(i) Answer B1 for Marks 4 / AO Element Notes Guidance FT their (a)(i) = M1 for Removes all algebraic fractions FT their equation if in comparable form M1 for Correctly expands all brackets FT their equation if in comparable form A1 for With no errors or omissions seen and one further stage seen after final M1 11(b)(ii) M2 for 3 M1 for or or for where either ab = –21 or 4b + a = –25 If 0 scored, SC1 for 4x + 3 and x – 7 seen but not in factorised form B1 for 7 and - Mark Scheme Question 11(b)(iii) 12 Answer 7 oe Marks / AO Element Notes Guidance 1 FT their positive solution 3 M2 for oe or M1 for oe If 0 scored, SC1 for oe 13 oe 4 M3 for oe or M2 for oe or oe or M1 for or If 0 scored, SC1 for oe - Mark Scheme Question 14(a) Answer 111.25 Marks 4 / AO Element Notes Guidance M1 for midpoints soi (25, 75, 112.5, 137.5, 175) M1 for ∑ fx with x in correct interval including both boundaries M1 (dep on 2nd M1) for ∑ fx ÷ 20 14(b) 2 7 11 17 14(c) oe 15(a) 15(b) oe 14.1 or 14.07… 2 B1 for three correct 1 2 3 M1 for oe M2 for oe or M1 for oe 16(a) 14 1 16(b) 16 1 - Mark Scheme Question Answer 16(c) Marks 3 oe / AO Element Notes M2 for or M1 for 16(d) Correct shading 17(a) oe or Guidance seen 1 1 and or 0.6 and 0.25 or 60% and 25% 17(b) oe 3 M2 for oe or oe or M1 for or oe (but not as part of a larger product) - Mark Scheme Question 18 Answer Marks 3 oe / AO Element Notes Guidance M2 for oe or oe or M1 for or or for a correct tree showing all 25 outcomes with the 11 correct outcomes identified 19(a)(i) oe M2 B1 for oe seen - Mark Scheme Question 19(a)(ii) Answer oe Marks 4 / AO Element Notes M3 for oe or oe or M2 for the sum of two products of different flavours isw or M1 for one correct product of different flavours isw Guidance - Mark Scheme Question 19(b) Answer oe Marks 3 / AO Element Notes Guidance M2 for oe or for oe or oe or M1 for oe seen - Mark Scheme Question 20(a) Answer oe Marks 3 / AO Element Notes M2 for or M1 for one of these products OR M1 for probability tree identifying all 20 outcomes with the correct 8 identified OR M1 for completed possibility space / 2-way table identifying the 8 possible outcomes out of 20, oe SC1 for replacement with Guidance - Mark Scheme Question 20(b) Answer oe Marks 3 / AO Element Notes Guidance M2 for oe or M1 for one of these products OR M1 for probability tree identifying all 25 outcomes with the correct 9 identified OR M1 for completed possibility space / 2-way table identifying the 9 possible outcomes out of 25, oe 20(c) Jojo and e.g. 1 1FT their (a) and (b) dep on being in range 0 to 1 [Total: 115] - Mark Scheme Question Answer Marks 1(a) 0.22 oe 2 1(b) 40 1 2(a) AO Element / Notes M1 for 0.15 + 0.2 + ? + 0.43 = 1 or better 2 B1 for 2 or 3 correctly completed regions 2(b) One of 5, 7, 9, 11, 13, 15 1 FT their Venn diagram 2(c) 12 1 FT their Venn diagram 1 FT their Venn diagram 2(d) oe 1 3(a)(i) 3(a)(ii) 1.62 or 1.623… nfww 4 M1 for 1.35, 1.45, 1.55, 1.65, 1.75 1.85 soi M1 for Σ fx M1 dep for their Σ fx ÷ 120 Guidance - Mark Scheme Question 3(b)(i) 3(b)(ii) Answer Marks / AO Element Notes Guidance 1 oe oe 4 M3 for or M2 for isw or M1 for After 0 scored, SC1 for answer or oe 3(c)(i) 55, 79, 106, 120 2 B1 for 2 or 3 correct - Mark Scheme Question 3(c)(ii) Answer Correct diagram Marks 3 AO Element / Notes B1 for correct horizontal plots B1FT for correct vertical plots B1FT dep on at least B1 for reasonable increasing curve or polygon through their 6 points If 0 scored SC1 for 5 out of 6 points correctly plotted 3(d)(i) 1.62 to 1.63 1 3(d)(ii) 1.57 to 1.58 2 4(a) E cao 1 4(b) H cao 1 5(a) 5(b) Arrow at Arrow at 1 1 B1 for 48 soi Guidance - Mark Scheme Question Answer 6 oe Marks 3 / AO Element Notes Guidance M2 for or M1 for or 7 72 2 8 0.41 2 9(a) oe 9(b) oe 1 1 9(c) 0 1 10(a) [0].62 oe 1 10(b) 0 1 11 0.73 oe 1 12 48 1 M1 for oe M1 for 1 – (0.35 + 0.04 + 0.2) - Mark Scheme Question 13 Answer oe 15(a) oe 2 Notes Guidance oe M1 for oe 1 2 15(b) 16(a) AO Element 1 0 14 Marks / 2 B1 for 2 or 3 correct out of 4 regions B1 for or provided fraction is less than 1 16(b) 46 1 17(a) 4 1 - Mark Scheme Question Answer Marks 17(b) 3 correct bars drawn on bar chart 4 / AO Element Notes B1 for Mr Smith bar drawn height 15 M2 for their (80 − (18 +14 +15)) ÷ 3[× 2] or M1 for 80 − (18 + 14 +15) oe 17(c) Mrs Brown 17(d)(i) oe 17(d)(ii) oe 1 FT their bar chart provided 5 bars drawn 1 2 FT their bar chart M1 for 80 − (18 + 14) or oe OR M1FT for adding heights of bars for (Mr Jones, Mrs Brown and Mr Smith) 17(e) 81 2 M1 for or Guidance - Mark Scheme Question 18(a) Answer Correct bar Marks 3 / AO Element Notes M1 for 5, 12, 17 or 34 M1 for 40 – their 34 18(b) 5 1 18(c) Adult 1 18(d) 19(a)(i) oe Correct frequencies FT 1 2 8 5 3 5 2 1 B1 for 1 frequency incorrect or 2 incorrect but total still 24 or 8 5 3 5 2 1 in tally column If 0 scored, B1 for completely correct tallies 19(a)(ii) 1 1 19(a)(iii) 5 1 19(a)(iv) 2 1 Guidance - Mark Scheme Question 19(a)(v) Answer 2.625 Marks 3 AO Element / Notes M1 for Σ fx 1×8+2×5+3×3+4 ×5+5×2+6×1 M1 dep for their Σ fx ÷ 24 19(a)(vi) oe 1 FT their table B1 for 2 or 3 correct bars or for all 4 heights correct 19(b) Correct bar chart 2 19(c) Correct generalised comparison 1 20(a) 1 20(b)(i) 1 FT their (a) dep on (a) being an expression in r Guidance - Mark Scheme Question 20(b)(ii) Answer Marks 3 M1 for or better nfww M1 for AO Element Notes FT their (b)(i) Strict FT their expansion to a quadratic then equating to 0.4 and then collecting to 3 terms on ‘one side’ OR OR oe A1 for / Strict FT their expansion to a quadratic = 0.4 all multiplied by 10 no errors or omissions seen Guidance - Mark Scheme Question 20(b)(iii) Answer Marks 3 B2 for AO Element / Notes or B2 for e.g. 5r(2r – 1) – 9(2r – 1) and then 5r – 9 = 0 and 2r – 1 = 0 or B1 for 5r(2r – 1) –9(2r – 1)[= 0] or 2r(5r – 9) –1(5r – 9)[= 0] or (5r + a)(2r + b) [= 0] where a, b are integers and ab = +9 or 2a + 5b = – 23 If 0 scored, SC1 for 5r – 9 and 2r – 1 seen but not in factorised form B1 for 20(b)(iv) 21(a) 0.8 or oe B1 for range = 7 1 6 B1 for mode = 21 B2 for median = 22.5 M1 for evidence of middle value M1 for use of Σ x ÷ 14 B2 for mean = 22.7 or 22.71… 21(b) oe 1 Guidance - Mark Scheme Question 22 Answer oe Marks 4 / AO Element Notes M3 for or M2 for or or M1 for seen or seen If 0 scored, SC1 for oe 23(a) 2 B1 for either numerator or denominator correct Guidance - Mark Scheme Question 23(b)(i) Answer B1 for Marks 4 / AO Element Notes Guidance FT their (a)(i) = M1 for Removes all algebraic fractions FT their equation if in comparable form M1 for Correctly expands all brackets FT their equation if in comparable form A1 for With no errors or omissions seen and one further stage seen after final M1 23(b)(ii) M2 for 3 M1 for or or for where either ab = –21 or 4b + a = –25 If 0 scored, SC1 for 4x + 3 and x – 7 seen but not in factorised form B1 for 7 and - Mark Scheme Question Answer Marks 7 1 24 [0].03 oe 1 25 70 2 Swimming 1 23(b)(iii) 26(a)(i) 26(a)(ii) 26(a)(iii) oe 5 cao / AO Element Notes FT their positive solution M1 for 25 000 × 0.0028 oe 1 2 M1 for or or for 26(a)(iv) oe 1 FT oe 26(a)(v) Tennis, Judo 1 soi by 6 Guidance - Mark Scheme Question Answer Marks / AO Element Notes Guidance 26(b) 2 sectors drawn: Running 60° Swimming 132° 2 M1 for use of 12° implied by 60° or 132° seen or for 10 [boys] or 22 [boys] seen 26(c) A valid correct similarity and difference 2 B1 for each 3 M2 for 27 oe oe or M1 for If 0 scored, SC1 for oe oe - Mark Scheme Question 28 Answer oe Marks 4 / AO Element Notes Guidance M3 for oe or M2 for oe or oe or M1 for or If 0 scored, SC1 for oe 29 30(a) oe 111.25 1 4 M1 for midpoints soi (25, 75, 112.5, 137.5, 175) M1 for ∑ fx with x in correct interval including both boundaries M1 (dep on 2nd M1) for ∑ fx ÷ 20 - Mark Scheme Question 30(b) 30(c) 31(a) Answer 2 7 11 17 oe Arrow at Marks 2 Clear indication 32(a) Arrow at 0.2 1 32(b) 0.8 oe 1 33 [0].36 oe 1 34 0.27 oe 2 14.1 or 14.07… Guidance B1 for three correct Clear indication 1 35(b) Notes 1 Arrow at 0 oe AO Element 1 31(b) 35(a) / 2 3 M1 for 1 − (0.2 + 0.45 + 0.08) oe M1 for oe M2 for oe or M1 for oe - Mark Scheme Question 36 37(a) 37(b) Answer Marks 2 540 96 144 240 129 131 260 225 275 500 1 / AO Element Notes M1 for or both correct 1 50 2 37(c) B1 for or 0.45 37(d) 12 : 13 2 B1 for 240 : 260 oe If 0 scored, SC1 for answer 13 : 12 37(e) 38(a) 38(b) Guidance oe Negative oe 1 1 1 or - Mark Scheme Question Answer Marks 38(c) Correct ruled line of best fit 1 38(d) 5 or 6 1 39(a) 39(b) oe Notes must be an integer 1 oe 1 40(a) 14 1 40(b) 16 1 40(c) AO Element 1 0 39(c) / oe 3 M2 for or M1 for 40(d) Correct shading 1 seen Guidance - Mark Scheme Question Answer Marks AO Element / Notes Guidance [Total: 174] - Mark Scheme Question 1 Answer Marks 3 12.8 4.4 0.8 Notes B2 for 2 correct heights or 3 correct frequency densities or B1 for 1 correct height or 2 correct frequency densities 1 2(a)(i) 2(a)(ii) AO Element / 1.62 or 1.623… nfww 4 M1 for 1.35, 1.45, 1.55, 1.65, 1.75 1.85 soi M1 for Σ fx M1 dep for their Σ fx ÷ 120 2(b)(i) oe 1 Guidance - Mark Scheme Question 2(b)(ii) Answer oe Marks 4 / AO Element Notes Guidance M3 for or M2 for isw or M1 for After 0 scored, SC1 for answer or oe 2(c)(i) 55, 79, 106, 120 2 B1 for 2 or 3 correct 2(c)(ii) Correct diagram 3 B1 for correct horizontal plots B1FT for correct vertical plots B1FT dep on at least B1 for reasonable increasing curve or polygon through their 6 points If 0 scored SC1 for 5 out of 6 points correctly plotted - Mark Scheme Question Answer Marks AO Element / Notes 2(d)(i) 1.62 to 1.63 1 2(d)(ii) 1.57 to 1.58 2 B1 for 48 soi Correct histogram 4 B1 for each correct block 3 Guidance If 0 scored, SC1 for 5, 20, 24, 1 seen 4 16.6 or 16.60 to 16.61 nfww 4 M1 for 5, 12.5, 17.5, 22.5, 30 soi M1 for Σ fx where x is in correct interval, including boundaries M1 dep on second M1 for 5 Fully correct histogram 4 B1 for each correct bar If 0 scored, SC1 for frequency densities of 5.4, 4.2, 0.8 and 0.45 seen [Total: 33] - Mark Scheme Question Answer Marks AO Element / Notes 1(a) Kite 1 1(b)(i) Translation 2 B1 for each 1(b)(ii) Reflection 2 B1 for each 3 B1 for each x = 0.5 oe 1(b)(iii) Rotation 90° clockwise oe [centre] (0, 0) oe 1(c)(i) (−5, −6) 1 1(c)(ii) Image at (−5, 0), (−2, 3), (7, 0),(−2, −3) 2 B1 for correct size, wrong position or correct shape with incorrect scale factor 2(a) Triangle at (–4, –4) (–1, –3) (–4, –3) 2 B1 for correct points not joined or for reflection in any y =k or for reflection in x = –1 Guidance - Mark Scheme Question 2(b) Answer Triangle at (1, 1) (1, 4) (2, 4) 2(c) Marks AO Element / Notes 2 B1 for correct points not joined or rotation 90° clockwise around any point or rotation 90° anticlockwise around (0, 0) 2 B1 for translation or correct vector oe Translation 3(a) Translation 2 B1 for each 3(b) Correct reflection at (6, 2), (6, 6), (7, 6), (7, 3) 2 B1 for three correct vertices 4(a)(i) Rotation 3 B1 for each 3 B1 for each 90° clockwise oe [centre] (0, 0) oe 4(a)(ii) Enlargement [sf] 0.5 oe [centre] (1, 2) Guidance - Mark Scheme Question 4(b)(i) Answer Triangle at (3, 2) (1, 5) (1, 2) Marks 2 / AO Element Notes B1 for translation of or 4(b)(ii) Triangle at (–3, –2) (–5, –2) (–5, –5) 2 B1 for reflection in y = k or x = 1 5(a) Rotation 3 B1 for each 3 B1 for each 90° clockwise oe (1, 0) 5(b) Enlargement −2 (0, 2) 6(a) Trapezium 1 6(b)(i) 16 or 15.8 to 16.2 1 6(b)(ii) 14 1 6(c)(i) Translation 2 B1 for each Guidance - Mark Scheme Question Answer Marks / AO Element Notes 6(c)(ii) Rotation 90° clockwise oe [about] (0, 0) oe 3 B1 for each 6(d)(i) Correct shape Vertices (−1, 4), (−1, 6), (−5, 6), (−5, 1) 2 B1 for reflection in x = k or y = 1 6(d)(ii) Correct shape Vertices (3, 0.5), (3, 3), (1, 3), (1, 2) 2 B1 for any enlargement, SF with different centre 7(a) Rotation 3 B1 for each 3 B1 for each 2 B1 for a correct translation of [centre] (0, 0) oe 90[°] clockwise oe 7(b) Enlargement [centre] (5, −7) [sf =] 3 7(c) Correct shape plotted with points (6, −1) (8, −1) (6, −3) (8, −3) (6, −5) or 7(d) Correct shape plotted with points (−2, 5) (−6, 5) (−2, 7) (−4, 5) (−4, 7) 2 B1 for reflection in y = k or x = 1 Guidance - Mark Scheme Question Answer Marks / AO Element Notes 8(a)(i) 16 1 8(a)(ii) 12 1 8(b)(i) (5, 2) 1 8(b)(ii)A (−5, 2) 1 8(b)(ii)B (5, 10) 2 B1 for (5, k) or (7, 2) 2 FT their (b)(i) 8(b)(iii) B1 for or or or 8(c)(i) Enlargement (SF) 0.5 oe (centre) (−3, 1) 3 B1 for each Guidance - Mark Scheme Question 8(c)(ii) Answer Rotation Marks AO Element / Notes 3 B1 for each 2 B1 for translation by Guidance 180° (centre) (4, 8) 9(a) Image at (1, 7), (4, 7), (4, 9), (3, 9) or 9(b) Image at (5, 3), (6, 3), (8, 5), (5, 5) 2 B1 for 180° rotation with wrong centre 9(c) Rotation 180° (4.5, 6) 3 B1 for rotation B1 for 180° B1FT for centre from their (a) OR Enlargement [factor] –1 (4.5, 6) 10 Image at (1, 2), (1, 5), (3, 5), (3, 4) B1 for enlargement B1 for –1 B1FT for centre from their (a) 2 B1 for y = x drawn or for 3 correct points [Total: 82] - Mark Scheme Question Answer Marks / AO Element Notes 1 1(a) cao 1(b) 4.47 or 4.472… 2 M1 for 1(c) (7, 10) 2 B1 for each 1(d) y = 2x − 4 oe 3 M1 for gradient = oe or answer y = mx – 4 M1 for substituting (3, 2) or (5, 6) into y = their mx + c or into y – k = their m(x – h) or into their y = mx – 4 1(e) (0, –4) 1 2(a) (–2, 5) 1 1 2(b) 2(c) (5, 4) plotted 1 FT their (d) Guidance - Mark Scheme Question 2(d) Answer B1 for parallelogram PQRS correctly drawn Marks 2 B1 for (1, 7) AO Element / Notes FT their R FT their S dep on first B1 3(a) (5, 3) 1 3(b) Point plotted at (4, −3) 1 3(c) 1 4(a) 1 4(b) 1 5(a) 1 5(b) 1 FT their (a) Guidance - Mark Scheme Question 6 Answer Marks / AO Element Notes 2 B1 for or 7(a) 1 7(b) 1 8(a) 1 8(b) 1 9(a) 2 or or B1 for answer or or for seen or Guidance - Mark Scheme Question Answer Marks / AO Element Notes Guidance 9(b) 3.61 or 3.605 to 3.606 2 M1 for oe 9(c) B1 for and 5 Accept equivalents B4 for and with evidence of a correct algebraic method M1 for correctly equating one set of coefficients of their equations or rearranges one of their equations to make m or n the subject e.g. oe M1 for correct method to eliminate one variable for their equations or correctly substitutes their m or their n into the other equation e.g. oe B1 for one correct answer - Mark Scheme Question Answer Marks / AO Element Notes Guidance 10(a) 2 M1 for correct unsimplified form or correct route e.g. 10(b)(i) 2 M1 for correct unsimplified form or correct route e.g. 10(b)(ii) 3 : 2 oe 2 11(a)(i) –a + 2c 1 11(a)(ii) or oe 1 B1 for oe or FT in simplest form 11(a)(iii) or 11(a)(iv) 11(b) or 4 1 oe oe 2 1 M1 for a correct unsimplified route - Mark Scheme Question 12(a) Answer 12.6 or 12.64 to 12.65 Marks 3 / AO Element Notes Guidance M2 for 122 + (−4)2 OR B1 for M1 for 2 12(b) B1 for or or for 13(a) 13(b) 14(a) oe oe oe simplified 2 M1 for correct unsimplified answer or correct route 2 M1 for correct unsimplified answer or correct route 2 M1 for a correct unsimplified answer or a correct route - Mark Scheme Question 14(b) Answer oe simplified 2 AO Element Notes M1 for a correct unsimplified answer or a correct route 1 15(a) 15(b) Marks / oe simplified 3 M2 for correct unsimplified e.g. or or M1 for a correct route e.g. or or 16(a) oe simplified 2 M1 for correct unsimplified answer or or or for a correct route Guidance - Mark Scheme Question Answer Marks 2 16(b) / AO Element Notes Guidance B2FT for (a) is if their oe M1 for (a) or or (a) or or oe 17(a) 6a – 2b or 2(3a – b) 2 M1 for 4a + b – (–2a + 3b) or better 17(b) 5a – b 2 M1 for a correct route e.g. , , 18(a) oe 2 M1 for any correct route eg or B1 for oe - Mark Scheme Question Answer 18(b) oe simplified Marks 2 / AO Element Notes Guidance FT their (a) + a simplified only if in terms of a and b. M1 for for identifying as position vector or correct route in any form or for correct unsimplified answer 2 19 M1 for a correct route or for 20 21 26 2 M1 for better 2 M1 for a correct route or [Total: 83]