IMO Level 1- Mathematics Olympiad (SOF) Class 6: Questions 175 - 182 of 1059

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Question number: 175

» Playing with Numbers

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MCQ▾

Question

The smallest number which when divided by 4,16,32 and 40 and leaves a remainder of 3,15,31 and 39 respectively is

Choices

Choice (4) Response

a.

147

b.

239

c.

161

d.

159

Question number: 176

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Question

HCF of two co-prime numbers is

Choices

Choice (4) Response

a.

0

b.

2

c.

1

d.

Question does not provide sufficient data or is vague

Question number: 177

» Number Systems

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Question

The integer which is 7 more than is

Choices

Choice (4) Response

a.

2

b.

4

c.

d.

16

Question number: 178

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Question

When a number is divided by seven, it has a remainder of 2. When it is divided by six, it has remainder of 3. What is the number?

Choices

Choice (4) Response

a.

38

b.

9

c.

16

d.

44

Question number: 179

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MCQ▾

Question

The co-prime numbers from the following pairs, is

Choices

Choice (4) Response

a.

36 and 25

b.

63 and 81

c.

35 and 21

d.

7 and 63

Question number: 180

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Question

The smallest value of ‘a’ in the number 321a8 so that it is divisible by 8 is:

Choices

Choice (4) Response

a.

1

b.

2

c.

4

d.

3

Question number: 181

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Question

693 is divisible by

Choices

Choice (4) Response

a.

3 & 9

b.

3

c.

9

d.

6

Question number: 182

» Number Systems

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Question

Rohan’s monthly salary is Rs. 18000. He spends Rs. 2050 for his home expenses, Rs. 1590 for purchasing clothes, Rs. 870 for purchasing groceries, milk, etc. , Rs. 1900 for purchasing medicine and pays a rent of Rs. 4500 in a particular month. How much does he save in this month?

Choices

Choice (4) Response

a.

Rs. 6870

b.

Rs. 8609

c.

Rs. 7050

d.

Rs. 7090