IMO- Mathematics Olympiad Class 8: Questions 584 - 590 of 1029

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Question number: 584

» Direct and Inverse Proportions

MCQ▾

Question

If 16:1x=1x:1216 , then the value of x is________.

Choices

Choice (4) Response

a.

36

b.

35

c.

39

d.

31

Question number: 585

» Direct and Inverse Proportions

MCQ▾

Question

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

Choices

Choice (4) Response

a.

10 days

b.

812 days

c.

813 days

d.

8 days

Question number: 586

» Exponents and Powers

MCQ▾

Question

The value of (5)3×355×32 is________.

Choices

Choice (4) Response

a.

675

b.

690

c.

630

d.

655

Question number: 587

» Direct and Inverse Proportions

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.

14 min

b.

13 min

c.

15 min

d.

21 min

Question number: 588

» Exponents and Powers

MCQ▾

Question

If 92×2x2x1=64 , then the value of x is________.

Choices

Choice (4) Response

a.

3

b.

2

c.

1

d.

4

Question number: 589

» Direct and Inverse Proportions

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 2.5

b.

Rs 1.2

c.

Rs 2

d.

Rs 3.5

Question number: 590

» Exponents and Powers

MCQ▾

Question

Simplify: (xa.xb)(ab)×(xb.xc)(bc)×(xc.xa)(ca)

Choices

Choice (4) Response

a.

0

b.

1

c.

(a+b+c)2

d.

(a2+b2+c2)

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