# IMO- Mathematics Olympiad Class 7: Questions 9 - 14 of 1012

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## Question number: 9

MCQ▾

### Question

Which of the following is an irrational number?

### Choices

Choice (4) Response

a.

2

b.

c.

d.

1.50

## Question number: 10

MCQ▾

### Question

In a magic square each row, column and diagonal have the same sum, then the values of A and B are respectively________.

 3 -4 1 -2 A 2 -1 B -3

### Choices

Choice (4) Response

a.

b.

4, 0

c.

1, 1

d.

## Question number: 11

MCQ▾

### Question

An insect crawls up 5 cm every second on a 60 cm vertical rod and then falls down 2 cm over the next second. How many seconds will it take to climb the rod?

### Choices

Choice (4) Response

a.

39 seconds

b.

30 seconds

c.

60 seconds

d.

20 seconds

## Question number: 12

MCQ▾

### Question

The average of the two middle rational numbers if are arranged in ascending order is________.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 13

MCQ▾

### Question

The value of is ________.

### Choices

Choice (4) Response

a.

b.

144

c.

240

d.

0

## Question number: 14

MCQ▾

### Question

8 is a ________ number

### Choices

Choice (4) Response

a.

Prime

b.

Irrational

c.

Rational

d.

Question does not provide sufficient data or is vague

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