# Credit Humber for Association

```Credit
Humber
Associationfor
Mathematics
Promotion
INSTRIrcNONSTO THESTUDENT
1.
givesthe signalto beginworting.
Openyourbookletwhenyoursupervisor
2.
Useof scratchpap6r,grephpap6t,ru19r,compasloaandnonprogrammablornon{rgphlc
calculatoEis permitted.
3.
Inthismultiplechoicetesteachquestionis followedbyfiveansw€G
cantraof tho boxend 3taywithln the lin€s.
4.
5 creditseach.
ForPARTB ansv'r€rs,
6 crdits each.
I creditseach.
5.
maynotbedrawnto scale.
Diagrams
6.
Youha\€ exac-tly
60 mlnuio3 to completethe contest.
GOODLUCKI
Thankyou for perticipating.
xnil6G.*9CHAnPndt
Con'3si
Part A: (5 credits each)
-
lfx = 4 andy = t, tben f+l equale:
x y
|
. l
. . _I
a, _
Dt
c, 4
5
2
0
t. l.
2. of thefiv€fractioD&quot;,
Ll,l,1,l,
. I
. . -I
b)
5
4
, 4
er5
*t&quot;h oneis thelargest?
-
5 10 138 3
a') :3
, . 5
or-
|
8
|
I
13
d) -i-
e) -
d)0
e) 60
c)6
d)2
e)0
c)2
d)0
e) -2
d) -1
e)3
c) I
3. What is the number of even factoreof 6O?
6)8
b) 12
c)3
l 0
I
4. Ifx = 0.2,then : ie:
r
. |
a)-
.. I
D )-
6. The valueof 2x4-2x3 ie;
a) 18
b) 12
\-
6. Find the valueofx + 3y, if x = I andy = -1.
a)4
b) -2
c)2
7. Ttere are Bix math teachers at a party. Each teacher ahakeshande with each
other teacher.How many handsha.keewere there?
e) 2l
a)6
b) 36
c) 30
d) rb
8. The averageof two numbers ie 6. Ifone number is l, what ie the other number?
e)g
a)3
b)4
c)6
d)6
9. In a local bicycle race,Jamal rode the 6r6t 6 km in l8 min. If he cutinued at
thie rate, how long would it tatre him to complete the 60 km rout€?
e) noneofthe
a) 20 min
b) 180min
c) 20Omin
d) 600 nin
above
10. Which of the following stat€ments i6 false?
a) 6&gt;2
b) 2=2
c) -2&lt;O
d) -4&lt;-2
e) -8&gt;-4
Part B: (6 credits each)
Il. A gameisplayedon a Cart€sianp+ordinateplane. Oneachmove,aplayerwho
is at a point (x, y) movesto the point (.y, 3x). After two move6a player who starts at
(1, -2) will be at:
e) Cl 6)
a) (2,3)
b) C3,6)
c) (6, -3)
d) (3, -6)
2@*6 Gn b I CHAttPnd, Con'€€i
12. What is the perimeter of the figure given?
a) 2a+23
b) 2a+24
c) 18
d) 20
e) ai2l
13. Ifthe sidelengthoofa cubeare incrcaeedby 1000/6,the volune i6 increaBed by:
d) 80096
e) none ofthe
a) 100%
b) 200%
a) 600%
atrove
14. The equare ehownie divided into rectangleewhoeearcaeart 25
and 144. The perimeter ofthe originsl squate i6:
a) 13
b) 68
c\ 62
d) 169
e) r7
16. My accurat€watahhas only onehand, an hour hand, At the preqieemoment
that this hand points directly to the ll-minute mark, what is the exact time?
a) l:12
b) 2t12
d) 11:00
e) 2:01
c) 2:11
16. There are two jars oach contsining r€d and white marblee. The ratio of red to
white Barbles is 7:I in the frrst jar 8nd 9:1 in the secondjat. Thore are 90 white
marbleein the fuet jar, If the eecondjar has twice as rnany r€d marbles as the frrst
jar, how many white marble8 are in the s€condjar?
a) 180
d) 90
e) 140
b) 20
c) 630
17. My father is 42 yeareold andmydog ie 8. If my dogwerchuman, it wouldbe
66. Ilow old would my father be if he were a dog?
a)6
b)?
d) 336
e) 392
c) 294
18. What id the smallest positive integer that leavesa remainder of 10 when divided
into 90?
a) 5
b) 10
d) 80
e) noneofthe
c) 16
above
19. To raise money for the school,a grade 9 claaebuys paclages of 8 hamburgers for
\$10.00. At a barbeque,each hamburger is sold for \$2.00. What is the profrt if they
sell 600 hamburgers analthey have 4 hamburgers left over?
e) \$630
a) \$1000
b) \$376
c) \$ 370
d) \$625
mHn
Gr€]c/€
9 CHAnPn.t
Contest
20. Sidney wrote down three different prime numbers. The sum of the6eprime
numbers was 40. What is the largest number of the three numberehe wrote down?
a) 33
b) 39
c) 29
d) 3r
e) 37
Part C: (8 credits each)
21. Find the difrerent valuee of a for which the
given triangle i8 isosceles.
4a+'l
a) a=2,a=3
b)a=3,a=4
c)a=2
d) a=3
e) noneofthe
above
22, A teacher recordedthe te€t marks for a classof 18 student€. Ueing the marks,
the averagewas calculated to be 70%. John'e mark of 86 % was incorrectly recorded
as 50%. What should ths correct averagebe?
a) 72o/o
b) 760/0
c) 660/0
d) 86%
e) 7go/o
23. A6 by 5 by6 cubeie formedusing 1by I by I cubes.A
numberof the cubesate removedby punchingout the l5
deeignatedcolumno from front to back, top to bottom, side to
side.How many ofthe cubearemain?
a) 50
b) 71
c) 76
d) 80
e) 49
d)' 2:: 7
e'-
24. Io the diagramthe curvedlineeare
eemi-circles.All areasmarked A are equal
to one another and all areae marked B are
equal to one another. The ratio ofeach area
A to eacharea B is:
e t -
b ' ) -6
. z
c , -
. 6
25. The ratio of two supplementary anglee ie l:2. Ifthe emaller angle is increasedby
10%, by rrhat percent must the larger be decr€aBedso that the two angles remain
supplementary?
a) l0%
b) 6%
c) 5oA
d) 40
e) 160/&quot;
```