IMO Level 1- Mathematics Olympiad (SOF) Class 6: Questions 158 - 165 of 1058

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Question 158

Question MCQ▾

Number of prime numbers from 1 to 50 are

Choices

Choice (4)Response

a.

15

b.

12

c.

20

d.

18

Edit

Question 159

Question MCQ▾

The HCF and LCM of two numbers is 16 and 192 respectively. If one of the numbers is 64, the other one is

Choices

Choice (4)Response

a.

24

b.

45

c.

48

d.

72

Edit

Question 160

Question MCQ▾

is divisible by

Choices

Choice (4)Response

a.

10

b.

2

c.

9

d.

3

Edit

Question 161

Question MCQ▾

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

Edit

Question 162

Question MCQ▾

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

Edit

Question 163

Question MCQ▾

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

Edit

Question 164

Question MCQ▾

The number 3,116, 365 is divisible by

Choices

Choice (4)Response

a.

5 & 7

b.

5

c.

7

d.

None of the above

Edit

Question 165

Question MCQ▾

Cube of any negative integer is

Choices

Choice (4)Response

a.

0

b.

Depend on the nature of integer

c.

Positive

d.

Negative

Edit