Page 1

NEW exercise your brain!

high iq maths challenges

150 mind-bending puzzles

3

50

H

2

15

HH H H H

20 25

5

2

first edition

Digital Edition

38326

16343

8653

3

8

7 2

4 9

? 5

6 13 17 25 + ÷ √ = ( )

solve equations • test your skills • every answer inside


Contents INTRODUCTION

6

8

THE PUZZLES

12

THE ANSWERS

111


7


12

The alphabet is written here but some letters are missing. Arrange the missing letters to give a word. What is it?

B C F G J K L M O

An

sw er

se

ep

ag

13 20

e1

12

P Q R T U W X Y Z

Two vehicles set off from the same point to travel the same journey. The first vehicle sets off ten minutes before the second vehicle. If the first vehicle travels at 55 km/h and the second vehicle travels at 60 km/h, how many kilometres from the starting point will the two vehicles draw level?


14 and A K = 10,

If D L = 8, M Z = 13 what does N R = ?

r we ns

e

se

12

e1

g pa

A

21

15

What number should replace the question mark?

4

5 5 9

2

7 8 4 6

9

? 7

1

6 2 2


45

In which direction should the missing arrow point?

An

sw er

40

?

se

ep

ag

e1

15


What number should appear next in this sequence?

1

20

?

300 3000

Answer see page 115

tu

rk

014

1

ey

an rd

?

jo

a sc

a ag d a

318

1 r

m

How many miles should it be to Turkey on this signpost?

ph

ili

pp

ine

s 1

619

41


What number should replace the question mark?

8

28

12

42

2

7

18

63

10

?

Answer see page 118

62

A car has travelled 30 miles at a speed of 50 mph. It started its journey with 8 gallons of fuel but its tank has been leaking throughout the journey and is now dry. The car completes 25 miles per gallon. How much fuel does it leak per hour?


In an amateur soccer team’s first 15 games, the average number of goals per game was three. After a further 30 games the average goals per game increased to five. What was the average number of goals per game in the last 30 games only? Answer see page 118

Add together three numbers each time to score 14. How many different combinations are there? Each number can be used as many times as you wish.

2 4 6 8 10

63

63


121

At a leisure centre there are three times as many people swimming as there are boxing. 12 more people are doing aerobics than boxing and 11 less people are playing badminton than doing aerobics. 10 people are playing badminton, how many are doing each of the other sports?

An

sw er

se

ep

ag

e1

21

90

122

What letter should replace the question mark?

ZF

N

RH

B

VC

P

QE

?


123

What number should replace the question mark?

3

5

2 8

4 1

9

1

3 6

91

91

5

8

3

4

?

An

sw er

se

ep

ag

e1

22


13

102

A group were discussing where to eat. Four times as many wanted Italian food as wanted Chinese. Five more people chose Indian than chose Chinese and three less people opted for Thai than for Indian. Four people wanted Thai food, how many chose Italian, how many chose Chinese and how many chose Indian?

139

Answer see page 123

What number should replace the question mark?

27 19 35

24 18 30

14 10 18

13 11

?


140 is to

as

A

B

An

sw er

se

ep

ag

e1

23

is to

C

103


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