# IMO Level 1- Mathematics Olympiad (SOF) Class 6: Questions 160 - 167 of 1059

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## Question number: 160

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MCQ▾

is divisible by

### Choices

Choice (4) Response

a.

10

b.

2

c.

9

d.

3

## Question number: 161

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MCQ▾

### Question

The HCF two numbers is 18. If one of the numbers is 90 and another is 36, then their LCM is

### Choices

Choice (4) Response

a.

170

b.

155

c.

165

d.

180

## Question number: 162

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MCQ▾

### Question

The LCM of two numbers is 138. If one of the numbers is 46 and another is 69, then the HCF is

### Choices

Choice (4) Response

a.

28

b.

29

c.

13

d.

23

## Question number: 163

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MCQ▾

### Question

There are 378 red cards in box. A boy takes out 9 red cards from it and replaces them by 14 blue cards. He continues to do so, till all red cards are replaced by blue cards. Find the number of blue cards put in the box?

### Choices

Choice (4) Response

a.

438

b.

348

c.

658

d.

588

## Question number: 164

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MCQ▾

### Question

The number 3,116,365 is divisible by

### Choices

Choice (4) Response

a.

5 & 7

b.

5

c.

7

d.

None of the above

## Question number: 165

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MCQ▾

### Question

Cube of any negative integer is

### Choices

Choice (4) Response

a.

0

b.

Depend on the nature of integer

c.

Positive

d.

Negative

## Question number: 166

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MCQ▾

### Question

Find the smallest number which will divide the greatest 3-digit number and the greatest 5-digit number exactly.

### Choices

Choice (4) Response

a.

8

b.

7

c.

9

d.

3

## Question number: 167

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MCQ▾

### Question

If positive sign precedes a bracket the sign of the terms inside the bracket will ________ when the bracket is removed.

### Choices

Choice (4) Response

a.

Depends on the bracket

b.

Be 0

c.

Change

d.

Not change