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SAMPLE Entrance Examination MATHEMATICS Time allowed: 60 minutes Instructions Calculators are NOT allowed. You may use a ruler. Attempt all questions. If you cannot do a question, go on to the next one and try again later on. Do not ask the teacher to explain a question to you. If you finish before the end, check your answers and then wait quietly in your place. If you do not finish, or if you cannot understand all the questions, do not worry. Section A You should spend about 20 minutes on this section. Each question is provided with FIVE possible answers, only ONE answer is correct. Write the correct answer in the box on the right, if you make a mistake, rub it out and try again. Section B You should spend about 40 minutes on this section Write your answers and working in the spaces provided. DO NOT use extra paper. 11+ ANSWERS

YEAR 11 GCSE MOCK

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SAMPLE

Entrance Examination

MATHEMATICS

Time allowed: 60 minutes

Instructions

Calculators are NOT allowed. You may use a ruler.

Attempt all questions.

If you cannot do a question, go on to the next one and try again later on.

Do not ask the teacher to explain a question to you.

If you finish before the end, check your answers and then wait quietly in your place.

If you do not finish, or if you cannot understand all the questions, do not worry.Section A

You should spend about 20 minutes on this section.

Each question is provided with FIVE possible answers, only ONE answer is correct.

Write the correct answer in the box on the right, if you make a mistake, rub it out and tryagain.

Section B

You should spend about 40 minutes on this section

Write your answers and working in the spaces provided. DO NOT use extra paper.

11+

ANSWERS

Section A 1. What is 148 + 476? A: 514 B: 524 C: 614 D: 624 E: 634 2. 2 * 8 2 9 9 5 7 7 Which of the following gives the correct number for *? A: 3 B: 4 C: 5 D: 6 E: 7 3. What is 45 160? A: 720 B: 4800 C: 7200 D: 640 E: 1440 4. Work out three-sevenths of 91 A: 42 B: 39 C: 36 D: 26 E: 13 5. What is 9423 ?

A: 43 B: 47 C: 35 D: 57 E: 37

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C
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B
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B

6. What number is halfway between 2

14 and 2

17 ?

A: 4

15 B: 2

15 C: 4

35 D: 6 E: 4

16

7. Work out 654321

A: 21 B: 35 C: 71 D: 33 E: 231 8. Three-quarters of a number is 36 less than the number. What’s the number? A: 144 B: 48 C: 124 D: 154 E: 52 9. Which of the following is the largest? A: 1413 B: 1512 C: 1611 D: 189 E: they’re all equal

10. Find the sum of all the prime numbers between 30 and 50 A: 152 B: 168 C: 197 D: 199 E: 201

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4.5+7.5 = 12 = 6 2 2
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= 1+6+20+6 = 33
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D
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A
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3x = x-36 ==> x = 36 ==> x = 144 4 4
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182 180 176 162
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A
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31+37+41+43+47 = 199
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D

11. What time is 1 hour 32 minutes before 7:19 pm? A: 4:42 pm B: 4:52 pm C: 5:47 pm D: 3:42 pm E: 2:56 am 12. What fraction of this rectangle is shaded?

A: 101 B: 10

3 C: 31 D: 2

1 E: 52

13. I buy 3 chocolate bars for 65 pence each and 5 bags of crisps for 55p each. How

much change do I get from a £5 note? A: 30p B: 35p C: 40p D: 45p E: 50p 14. Two whole numbers multiply together to make 180. What is the smallest possible

difference between the two numbers? A: 3 B: 8 C: 11 D: 21 E: 57 15. Work out 80% of £535. A: £107 B: £372 C: £400 D: £418 E: £428

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7:19 ==> 6:19 ==> 5:47 -1h -32m
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C
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2+1x2x2 = 4 = 2 2 10 5
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= 4
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E
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500-(3x65)-(5x55) = 500-195-275 = 30p
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A
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180 = 18x10 = 15x12 ==> 15-12 = 3
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A
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E
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535x 80 = £428 100

16. Toy cars cost 84p each or £2.20 for a box of three. What’s the largest number of

cars I can buy with £15?

A: 17 B: 18 C: 19 D: 20 E: 21

17. I have lots of 5p, 8p and 11p stamps. What’s the biggest amount I cannot makeexactly with my stamps?

A: 7p B: 49p C: 19p D: 38p E: 17p

18. What is the area of the shaded triangle below? (Diagram not to scale)

A: 13.2 cm2 B: 24 cm2 C: 24.2 cm2 D: 24.6 cm2 E: 49.2 m2

19. How many different ways are there of paying exactly 20p using only 1p and 2pcoins?

A: 2 B: 11 C: 10 D: 5 E: 20

20. A woman’s age is 70 years, 70 months, 70 weeks and 70 days. How old will she be

on her next birthday?

A: 71 B: 76 C: 78 D: 80 E: 81

8.2 cm

6 cm

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2.20x6 = £13.20 => 15-13.20 = £1.80 84px2 = 168p = £1.68 => change = 1.80-1.68 = £0.12 = 12p => toy cars = 6x3+2 = 20
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5x6+8
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11+8
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4x11+5
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biggest
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E
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1x8.2x6 = 6x4.1 = 24.6cm2 2
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D
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20=1x20+2x0 =1x18+2x1 =1x16+2x2 2x0 to 2x10 =1x14+2x3 Total 11 ways ................. =1x2+2x9 =1x0+2x10
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70x30+70x7+70 = 70x(38)days = 70x38 years ~ 7years(approx) 77+1 = 78 (Next birthday)
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C

Section B 21. Fill in the missing numbers in the following sequences: a) 10, 13, 16, ____, ____, 25, 28

b) 29, 22, 15, 8, ____, ____, -13, -20

c) 1, -2, 4, -8, ____, ____, 64, -128

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19 22
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+3 3 3 3 3 3
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1 -6
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-7 7 7 7 7 7 7 (Subtract)
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x4 x4 x4
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x4 x4 x4
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16 -32
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1 4 16 64
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-2 -8 -32 -128
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x4 x4 x4
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x4 x4 x4
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22. a) Work out 17353

Answer:……………………………….…………………….. b) Subtract 235 from 412.

Answer:……………………………….…………………….. c) What is the remainder when 531 is divided by 17?

Answer:……………………………….……………………..

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173 x53 519 8650 9169
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9169
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412 -235 177
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177
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531 51 21 17 4 remainder
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17
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31
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4

23. Here are two ways of making a total of 12 from three different whole numbers: 2 + 3 + 7 =12 3 + 4 + 5 = 12

a) Write down all the ways of making a total of 12 using three different whole numbers (don’t count 2 + 3 + 7 as different from 3 + 7 + 2).

b) How many ways are there of making a total of 15 using three different whole numbers?

Answer:……………………………….……………………..

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1+2+9=12 1+3+8=12 1+4+7=12 1+5+6=12 2+3+7=12 2+4+6=12 3+4+5=12
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1+2+12 2+3+10 3+4+8 1+3+11 2+4+9 3+5+7 1+4+10 2+5+8 4+5+6 1+5+9 2+6+7 1+6+8 Total = 12
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12

24.

The 2 by 3 rectangle above contains eight squares: six 1 by 1 squares and two 2x2 squares.

a) How many squares are in this 4 by 5 rectangle?

Answer:……………………………….……………………..

b) Find a rectangle which contains exactly 20 squares.

Answer:……………………………….…………………….

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40
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1x1 => 20 = 4x5 2x2 => 12 = 3x4 3x3 => 6 = 2x3 4x4 => 2 = 1x2 40
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4x3 rectangle
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1x1 => 12 = 4x3 2x2 => 6 = 3x2 3x3 => 2 = 2x1 20
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1x1 => 7x2 = 14 2x2 => 6x1 = 6 20
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4x3 (or) 3x4 rectangle (or) 7x2 rectangle

25. a) Robin thinks of a number. When he triples the number and then subtracts 13, he gets 11. What's his number?

Answer:……………………………….……………………..

b) Ros thinks of a number. When she subtracts the number from 91 and then adds 19 to the answer, she gets 12. What's her number?

Answer:……………………………….……………………..

c) Neetha thinks of a number. When she multiplies the number by 5 and then subtracts the answer from 84 she gets her original number. What's her number?

Answer:……………………………….……………………..

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3x-13 = 11 => 3x = 24 => x = 24 => x = 8 3
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8
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(91-x) + 19 = 12 => x = 91+19-12 = 98
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98
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84-5x = x => 6x = 84 => x = 84 = 14 6
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14

26. A shape is made by cutting equal squares from the corners of a rectangular piece of card. Find the area of the remaining card.

(Diagram not to scale)

Answer:……………………………….……………………..

17 cm

13 cm

11 cm

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4 4
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4
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4
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Area = (11+4) x (17+4) - 4(4x4) = 15x21 - 4(16) = 315-64 = 251cm2
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251cm2

27. Here's a rule to combine two numbers: multiply each number by itself, then add these two numbers together; finally add together the digits of this answer. For example 5 and 8 combine to give 17 because 89)88()55( and then 1798 .

a) What do you get when you combine 3 and 7 using this rule?

Answer:……………………………….……………………..

b) I’m thinking of two different numbers. When I combine them using this rule, I get the answer 9. What could my two numbers be?

Answer:……………………………….…………………….. Mia and Julian play a game. In the game, Mia chooses a whole number, and then

Julian has to choose another whole number so that when he combines it with Mia's number using the rule above, the answer is 7. If he can’t find a number, Mia wins.

c) If Mia says the number 3, what number should Julian choose?

Answer:……………………………….…………………….. d) If Mia says the number 9, what number should Julian choose?

Answer:……………………………….……………………..

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(3x3)+(7x7) = 9+49 = 58 = 5+8 = 13
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13
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a2+b2 = c 62+32 = 45 4+5=9
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92+32 = 90 9+0=9
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C=9 ==> Possible C=18 ==> not possible C=27 ==> not possible C=45 ==> Possible
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(3,6) (or) (3,9)
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32+b2 = c 7 => 32+42 = 25 = 2+5 = 7 16 => 25 =>
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4
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92+b2 = c 106 ==> 92+52 = 106 = 1+0+6 = 7
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5

28. A pattern is made using black and white squares. The first four patterns are shownbelow:

a) Complete the table below:

Pattern number 1 2 3 4

Number of white squares 1

Number of black squares 0 3

b) How many black squares will there be in the 8th pattern?

Answer:……………………………….……………………..

c) How many squares will there be in total in the 19th pattern?

Answer:……………………………….……………………..

c) Which pattern number has 31 white squares and 33 black squares?

Answer:……………………………….……………………..

d) Sam draws a pattern like the ones above and says, "there are 96 black squaresand 95 white squares in my pattern." How can you tell that he must havemiscounted?

Answer:……………………………….……………………..

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1 4 4
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3 6
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12
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5 ==> 6 6 ==> 9 7 ==> 9 8 ==> 12
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nth pattern = 3n-2 squares = (3x19)-2 = 57-2 = 55
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55
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31+33 = 64 = 3n-2 => 3n = 66 n = 22
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22
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He is wrong becuase there is no whole number 'n' pattern which gives total of 191squares.
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95+96 = 191 => 3n-2 = 191 => 3n = 193 n = 193 = 64.33 not a whole number 3

29. My watch (which is a 12 hour watch) gains 3 minutes every 2 hours. a) I set my watch to the correct time at noon on 1st January. If I don’t reset it, when

will it next show the correct time?

Answer:……………………………….…………………….. Mrs Varma’s watch (also a 12 hour watch) loses 5 minutes every 2 hours. She also

sets her watch to the correct time at noon on 1st January. b) When will our two watches next show the same time?

Answer:……………………………….…………………….. c) When will our watches next show the same, correct time?

Answer:……………………………….……………………..

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For the watch to show correct time it should gain (12hours) = 12x60 = 720min ==> 3m ==> 2h 720m ==> ? 720x2 = 480h 3 = 480 = 20days 24
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21Jan at noon
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For watches to be same time the time difference should be 12 hours 5x+3x = 720 2 2 => x = 180hours = 7d12h
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On 8th Jan Mid night
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LCM of 480, 180 = 1440 hours = 60 days
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On March 2nd noon

30. The diagram below is made using the following rule: the number in each square isthe difference between the numbers in the two squares below it:

a) Copy and complete the diagrams below using the same rule and only positivenumbers.

b) If the same rules are used in the diagram below, what are the possible valuesfor the number x?

Answer:……………………………….……………………..

1 23 7

7

8

10

5

3

19

8

16 6

12

9

14

18

3

9

x

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14
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5
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22
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10
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4
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26
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35
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13 21
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6
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9
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x = 9-6 = 3 (or) x = 9+6 = 15
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6
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27
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x = 27-6 = 21 (or) x = 27+6 = 33
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x = 27-12 = 15 (or) x = 27+12 = 39
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12
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27
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3, 15, 21, 33, 39