IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 585 - 591 of 1040

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Question number: 585

» Direct and Inverse Proportions

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MCQ▾

Question

A sum of money is sufficient to pay wages for 15 days and wages for 20 days. The same money is sufficient to pay the wages of both for ________.

Choices

Choice (4) Response

a.

8 days

b.

days

c.

days

d.

10 days

Question number: 586

» Exponents and Powers

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MCQ▾

Question

The value of is________.

Choices

Choice (4) Response

a.

675

b.

690

c.

630

d.

655

Question number: 587

» Direct and Inverse Proportions

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MCQ▾

Question

If 5 men take an hour to dig a ditch, how long should it take 20 men to dig a ditch of the same type?

Choices

Choice (4) Response

a.

13 min

b.

14 min

c.

21 min

d.

15 min

Question number: 588

» Exponents and Powers

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MCQ▾

Question

If , then the value of is________.

Choices

Choice (4) Response

a.

4

b.

1

c.

2

d.

3

Question number: 589

» Direct and Inverse Proportions

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MCQ▾

Question

An agent receives a commission of Rs. 30.00 on sales of Rs. 2500.00. The commission he get on sales of Rs. 1000.00 is________.

Choices

Choice (4) Response

a.

Rs 2

b.

Rs 2.5

c.

Rs 1.2

d.

Rs 3.5

Question number: 590

» Exponents and Powers

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MCQ▾

Question

Simplify:

Choices

Choice (4) Response

a.

0

b.

1

c.

d.

Question number: 591

» Direct and Inverse Proportions

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MCQ▾

Question

Pipes A and B can fill a tank in 3 and 4 hours respectively. Pipe C can empty it in 8 hours. If all the three pipes are opened together, then the tank will be filled in:

Choices

Choice (4) Response

a.

hours

b.

hours

c.

hours

d.

hours