Everyday Mathematics (IMO Level 1- Mathematics Olympiad (SOF) Class 10): Questions 6 - 10 of 68

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Question number: 6

» Everyday Mathematics

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Question

A boy was asked to multiply a given number by . Instead, he divided the given number by and got the result 225 more than what he should have got if he had multiplied the number by . The given number was ________.

Choices

Choice (4) Response

a.

17

b.

136

c.

64

d.

8

Question number: 7

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Sumit has 27 small cubes of . He wants to arrange all of them in a cuboidal shape, such that the surface area will be minim um. What is the diagonal of this larger cuboid?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 8

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Five years ago, a father was four times as old as his son. 8 years later, father’s age will be exceeding his son’s age by 12 years. The ratio of the present ages of father and son is ________

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 9

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5 bells commence tolling together and toll at intervals of 3,6, 9,12 and 15 seconds respectively. In 12 minutes, how many times do they toll together?

Choices

Choice (4) Response

a.

7

b.

4

c.

6

d.

5

Question number: 10

» Everyday Mathematics

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The present ages of A, B and C are in proportions . Eight years ago, the sum of their ages was 76. What are their present ages (in years)?

Choices

Choice (4) Response

a.

b.

c.

d.

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