NATIONAL SENIOR CERTIFICATE GRADE 11 MATHEMATICAL LITERACY COMMON TEST SEPTEMBER 2023 MARKING GUIDELINE MARKS: 100 SYMBOL M MA CA A C S RT/RG/RD NPR SF O J R F E U AO EXPLANATION Method Method with accuracy Consistent accuracy Accuracy (Answer) Conversion Simplification Reading from a table/ graph/ diagram No penalty for correct rounding Correct substitution in a formula Opinion/ reason/deduction/example Justification Rounding off deriving a formula Explanation Units Answer only full marks This marking guideline consists of 6 pages. Mathematical Literacy(Grade 11) QUESTION 1 [20MARKS] QUE SOLUTION 1.1.1 2 NSC – Marking Guidelines Common Test September 2023 ANSWER ONLY FULL MARKS EXPLANATION 15;16;18;18;18;19;19;19;21;21;21;21;24 A T/L DH L1 2A, Answer (2) 1.1.2 DH L1 CA from 1.1.1 2CA, Answer 21 CA (2) 1.1.3 South Africa RT 2RT, Reading correct country 1.1.4 115 A 2A, Answer 1.2.1 Average monthly deposit = RT = 172,00 A 1RT, Dividing by 10 DH (2) L1 DH (2) L1 F L1 1A, Answer. (2) 1.2.2 A= MA = 70 A 1.2.3 B = £1720 – £700 - £560 MA = £460 A OR B = £92 × 5 MA =£460 A Range = 92 – 28 MA = 64 A 1.2.4 P(coin)= 0% A 1.2.5 ContinuousA Copyright Reserved 1MA, Dividing correct values F L1 1A, Answer 1MA, Subtracting correct values 1A, Answer OR 1MA, Multiplying correct values 1A, Answer (4) 1MA, Difference 1A, Answer (2) 2A, Answer (2) 2A, Answer (2) [20] DH L1 P L1 DH L1 Please Turn Over Mathematical Literacy(Grade 11) 3 NSC – Marking Guidelines QUESTION 2 [33 MARKS] QUE SOLUTION 2.1.1 R400A 2.1.2 Common Test September 2023 EXPLANATION 2A, Variable cost Total income = R600 × number of sandals sold F 2A, Answer Total income = R600 × 20SF =R12 000CA CA from 2.1.2 1SF, Multiplying by 20 1CA, Answer 2.1.3 T/L F (2) L1 F (2) L2 F L2 (2) 2.1.4 Total cost = R2000 + R400×20SF = R8000A The statement is incorrectJ 1SF, Correct formula substitution 1A, Answer 1J, Justification. F L4 (3) 2.1.5 2.2.1 O Correct, the company need to know when to make a profit or loss for the number of sandals produced and sold.E Total distance = M = 637,25km CA F L4 1O, Answer 2E, Explanation (3) 1M, Using rate correctly M L2 1CA, Answer (2) 2.2.2 Metres = 1C, Dividing by 1000 C 1MA, Answer AO = 1,74 MA 2.2.3 M L1 Surface area = (2785×1630)+2×(2785×355)+2×(1630×355) SF = 4 539 550 + 1 977 350 +1 157 300 mm2 S = 7 674 200 mm2 A (2) M L2 1SF, Correct substitution 1S, Simplification 1A, Answer (3) 2.3.1 Number of tyres = 3 × 4 × 5MA =60 A 1MA, Multiplying correct values 1A, Answer. MP L2 (2) 2.3.2 Radius = = 1M, Dividing 2785mm by 4 M 1MCA, Dividing diameter by 2 MCA 1CA, Radius =348,125mmCA 2.4.1 Indirect proportionA 2.4.2 Number of workers = =18 A 2.4.3 BA Copyright Reserved M L3 (3) 2A, Answer M M (2) L1 1M, Dividing 144 by 8 1A, Answer M L2 (2) 2A, Answer M (2) L1 Please Turn Over Mathematical Literacy(Grade 11) 4 NSC – Marking Guidelines Common Test September 2023 M L3 2.4.4 1A, Starting point 1A, Any other correct point 1CA, Joining of points A CA A (3) [33] Copyright Reserved Please Turn Over Mathematical Literacy(Grade 11) 5 NSC – Marking Guidelines QUESTION 3 [27 MARKS] QUE SOLUTION 3.1.1 Floor plan- a layout of the house that shows the inside/internal of the house from the top view/bird eye view. E Elevation plan – a diagram that shows the height of the wall/roof of the house from the outside/external.E Common Test September 2023 EXPLANATION 2E, Floor plan T/L MP L4 2E, Elevation plan (4) 3.1.2 Doors = 8RT Windows = 5RT 1RT, Number of doors 1RT, Number of windows 3.1.3 Number scale/unit scale/Ratio scale. A One unit on the plan represents 110 units in the real house. E Roof overlap/roof overhangA 1A, Correct scale 1E, Explanation MP L2 (2) 3.1.4 3.1.5 P (B) = = 0,428571….. = 0,429 R 3.1.6 3.2.1 A= East elevationRD B= North elevationRD RT Tariff = C = R1,3999CA MP L2 (2) 2A, Answer Accept: drain 1RT,Correct Numerator 1RT, Correct Denominator MP (2) L4 P L3 1R, Correct rounding (3) 2RD, Correct elevations MP (2) L4 F L2 1RT, Correct value 1C, Divided by 100 1CA, Answer (3) 3.2.2 3.2.3 3.2.4 To ensure customers do not waste electricity. O OR To control the usage of electricity. Total cost = (600 × 182,21) + (90 × 309,71) MA = 137 199.9cents 100C = R1371,999CA = R1 372 R Customers have information on how much electricity they use.J Customers able to decide when to use less or more electricity.J Service provider eliminates the need for estimated billing. Copyright Reserved F L4 2O, Opinion (2) 1MA, Multiplying by correct rates F L3 1C, Dividing by 100 1CA, Answer 1R, Correct Rands (4) F L4 2J, Justification 2J, Justification (4) [28] Please Turn Over Mathematical Literacy(Grade 11) 6 NSC – Marking Guidelines QUESTION 4 [20 MARKS] QUE SOLUTION 4.1.1 Total budget = R260000+R130000+R90000+R45000+R35000+R20000 +R18000+R15000+R13000+R12000 M =R638 000×2 MA =R1 276 000CA Common Test September 2023 EXPLANATION T/L DH L3 1M, Adding correct values. 1MA, Multiplying by 2 1CA, Total budget (3) 4.1.2 Mean A 4.1.3 Mean = R500000+R250000+R180000+R90000+R70000 R40000+R35000+R30000+R25000+R20000M 10MA = R124 000CA 2A, Correct measure of central tendency DH L2 (2) 4.2.1 4.2.2 RT Start time = 08:10 – 2hrs 40min MA =05:30 OR Start time = 10:00 – 4hrs 30min = 05:30 OR Start time = 11:40 – 6hrs 10min = 05:30 OR Start time = 13:40 – 8hrs 10min = 05:30 OR Start time = 15:00 – 9hrs 30min = 05:30 OR Start time = 16:40 – 11hrs 10min = 05:30 Median = = 39,24km A = 39km R 4.2.3 4.2.4 To eliminate unfit athleteE OR To ensure that the marathon is completed on a stipulated time. No of Litres = MA = 709,30litres CA = 700 litresR Copyright Reserved 1M, Adding ALL correct values 1MA, Dividing by 10 1CA, Answer (3) 1RT, Reading correct day time 1MA, Subtracting correct duration DH L3 M L2 (2) 1MA, Adding correct distances 1MA, Dividing by 2 DH L2 1A, Answer 1R, Correct rounding (4) 2E, Explanation MP L4 (2) 1MA, Dividing 30 500l by 43 1CA, Answer 1R, Rounding M L3 (3) [20] TOTAL MARKS: 100 Please Turn Over