# Number System [IMO Level 1- Mathematics Olympiad (SOF) Class 7]: Questions 1 - 10 of 82

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## Question number: 1

» Number System

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MCQ▾

### Question

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

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 2

» Number System

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MCQ▾

### Question

Which integer is the additive inverse of 5?

### Choices

Choice (4)Response

a.

b.

5

c.

1

d.

0

## Question number: 3

» Number System

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MCQ▾

### Question

Which integer is the additive inverse of 1?

### Choices

Choice (4)Response

a.

b.

3

c.

0

d.

1

## Question number: 4

» Number System

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MCQ▾

### Question

Which pair of numbers does not have a product equal to 36?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 5

» Number System

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MCQ▾

### Question

Which of the following number is prime?

### Choices

Choice (4)Response

a.

179

b.

187

c.

119

d.

247

## Question number: 6

» Number System

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MCQ▾

### Question

The value of is ________.

### Choices

Choice (4)Response

a.

240

b.

0

c.

120

d.

## Question number: 7

» Number System

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MCQ▾

### Question

The value of , where is absolute value of an integer is________.

### Choices

Choice (4)Response

a.

1

b.

0

c.

2

d.

3

## Question number: 8

» Number System

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MCQ▾

### Question

The value of , where is absolute value of an integer is________.

### Choices

Choice (4)Response

a.

1

b.

0

c.

3

d.

2

## Question number: 9

» Number System

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MCQ▾

### Question

Which of the following is an irrational number?

### Choices

Choice (4)Response

a.

b.

c.

1.50

d.

2

## Question number: 10

» Number System

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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.

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