# IMO Level 1- Mathematics Olympiad (SOF) Class 6: Questions 125 - 132 of 1059

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## Question 125

### Question

MCQ▾

The number with which 96 is multiplied so that product remains the same is ________

### Choices

Choice (4)Response

a.

1

b.

0

c.

96

d.

## Question 126

### Question

MCQ▾

Multiplicative identity for a rational number is________

### Choices

Choice (4)Response

a.

1

b.

0

c.

2

d.

All of the above

## Question 127

### Question

MCQ▾

If are two whole numbers, then commutative law is applicable to subtraction if and only if

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 128

### Question

MCQ▾

A number is always divisible by 90 if

### Choices

Choice (4)Response

a.

It is divisible by both 2 and 45

b.

It is divisible by both 5 and 18

c.

It is divisible by both 9 and 10

d.

All a., b. and c. are correct

## Question 129

### Question

MCQ▾

Which of the following statement is true if N, W and I are sets of Natural, Whole and Integer numbers respectively?

### Choices

Choice (4)Response

a.

I ⊂ W ⊂ N

b.

N ⊂ W ⊂ I

c.

W ⊂ N ⊂ I

d.

I ⊂ N ⊂ W

## Question 130

### Question

MCQ▾

The prime number that is placed at fifth after prime number 7 is

### Choices

Choice (4)Response

a.

27

b.

19

c.

23

d.

29

## Question 131

### Question

MCQ▾

Observe the following patterns. Then find the sum of .

… ‎ …

### Choices

Choice (4)Response

a.

81

b.

121

c.

64

d.

100

## Question 132

### Question

MCQ▾

Which sign will come in the blank space to make the expression true?

### Choices

Choice (4)Response

a.

b.

>

c.

=

d.

<