# Number System (IMO- Mathematics Olympiad (SOF) Class 7): Questions 35 - 42 of 81

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## Question number: 35

» Number System

MCQ▾

### Question

The product of two rational numbers is. If one of the numbers is , then the other number is________.

### Choices

Choice (4) Response

a.

27

b.

36

c.

22

d.

49

## Question number: 36

» Number System

MCQ▾

### Question

The value of y such that and are equivalent rational numbers is________.

### Choices

Choice (4) Response

a.

b.

c.

15

d.

5

## Question number: 37

» Number System

MCQ▾

Simplify

### Choices

Choice (4) Response

a.

b.

7

c.

d.

8

## Question number: 38

» Number System

MCQ▾

### Question

A gardener plans to plant 630 trees in 21 rows each containing the same number of trees, then how many trees will there be in each row?

### Choices

Choice (4) Response

a.

3

b.

21

c.

30

d.

300

## Question number: 39

» Number System

MCQ▾

### Question

The sign of the product of one positive integer and one negative integer is________.

### Choices

Choice (4) Response

a.

Negative

b.

Cannot be determined

c.

Positive or Negative

d.

Positive

## Question number: 40

» Number System

MCQ▾

### Question

What will be the sign of the product if we together multiply 200 negative integers and 12 positive integers?

### Choices

Choice (4) Response

a.

Negative

b.

Data is insufficient

c.

Positive

d.

Can’t say

## Question number: 41

» Number System

MCQ▾

### Question

What will be the sign of the product if we together multiply 199 negative integers and 10 positive integers?

### Choices

Choice (4) Response

a.

Negative

b.

Data is insufficient

c.

Positive

d.

Can’t say

## Question number: 42

» Number System

MCQ▾

### Question

The value of X in, is________.

### Choices

Choice (4) Response

a.

b.

c.

3

d.

2

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