IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 389 - 396 of 1022

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Question number: 389

» Comparing Quantities

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MCQ▾

Question

Two numbers are in the ratio of 1: 2. If 7 be added to both, their ratio changes to 3: 5. The greater number is ________.

Choices

Choice (4) Response

a.

32

b.

28

c.

25

d.

36

Question number: 390

» Exponents and Powers

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MCQ▾

Question

If then a =?

Choices

Choice (4) Response

a.

5

b.

4

c.

1

d.

9

Question number: 391

» Comparing Quantities

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MCQ▾

Question

By selling a cup for Rs. 180, a man loses of his outlay. If it is sold for Rs. 255, what is the gain percent?

Choices

Choice (4) Response

a.

19.45%

b.

13.33%

c.

13.5%

d.

22%

Question number: 392

» Comparing Quantities

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MCQ▾

Question

Two numbers are in the ratio of 2: 3. If 9 be subtracted from both, their ratio changes to 1: 2. The greater number is ________.

Choices

Choice (4) Response

a.

28

b.

27

c.

18

d.

38

Question number: 393

» Comparing Quantities

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MCQ▾

Question

A man purchased a bag of sugar containing 55 kg for Rs. 225. He sold it at the rate of Rs. 5.25 per kg. Then the profit or loss in % is ________.

Choices

Choice (4) Response

a.

16.67 % gain

b.

16.67 % loss

c.

12.56 % gain

d.

12.56 % loss

Question number: 394

» Comparing Quantities

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MCQ▾

Question

The CP of 25 articles is equal to the SP of 20 articles. The gain % is ________.

Choices

Choice (4) Response

a.

50%

b.

30%

c.

20%

d.

25%

Question number: 395

» Exponents and Powers

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MCQ▾

Question

If , then x =

Choices

Choice (4) Response

a.

6

b.

9

c.

0

d.

15

Question number: 396

» Algebraic Expressions

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MCQ▾

Question

An expression is taken away from to obtain , then the expression is ________.

Choices

Choice (4) Response

a.

b.

c.

d.