IMO- Mathematics Olympiad Class 8: Questions 553 - 561 of 1029

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Question number: 553

» Direct and Inverse Proportions

MCQ▾

Question

An agent receives a commission of Rs. 50.00 on sales of Rs. 3500.00. The commission he get on sales of Rs. 300.00 is________.

Choices

Choice (4) Response

a.

Rs 4.00

b.

Rs 3.50

c.

Rs 4.28

d.

Rs 2.87

Question number: 554

» Direct and Inverse Proportions

MCQ▾

Question

If A: B = 2: 3 and B: C = 3: 5, then C: A is equal to, ________.

Choices

Choice (4) Response

a.

2: 3

b.

4: 5

c.

5: 2

d.

5: 4

Question number: 555

» Exponents and Powers

MCQ▾

Question

The value of (8)2+(10)2+(5)3

Choices

Choice (4) Response

a.

15

b.

16

c.

17

d.

11

Question number: 556

» Exponents and Powers

MCQ▾

Question

The value of (3)5×3532×36 is________.

Choices

Choice (4) Response

a.

1

b.

9

c.

5

d.

4

Question number: 557

» Exponents and Powers

MCQ▾

Question

The value of 32001+319993200031998 , is________.

Choices

Choice (4) Response

a.

3

b.

5

c.

2

d.

4

Question number: 558

» Exponents and Powers

MCQ▾

Question

The value of (25)1 is________.

Choices

Choice (4) Response

a.

1

b.

52

c.

52

d.

25

Question number: 559

» Exponents and Powers

MCQ▾

Question

If ax=by=cz and c=b2a , then x equals

Choices

Choice (4) Response

a.

y+z2yx

b.

2yxx+y

c.

2zxx+z

d.

xy2x+y

Question number: 560

» Direct and Inverse Proportions

MCQ▾

Question

0.9 of a number equals 0.03 of another number. The ratio of the number is________.

Choices

Choice (4) Response

a.

10: 3

b.

1: 30

c.

3: 10

d.

3: 20

Question number: 561

» Direct and Inverse Proportions

MCQ▾

Question

For a group of 24 students food lasts for 35 days. For how many days will the same food last for 30 students?

Choices

Choice (4) Response

a.

25 days

b.

30 days

c.

28 days

d.

20 days

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