IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 577 - 584 of 1091

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Question 577

Question MCQ▾

When simplified, is equal to________

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 578

Question MCQ▾

Number of prime factors in is

Choices

Choice (4)Response

a.

4

b.

9

c.

6

d.

8

Edit

Question 579

Question MCQ▾

A man completes of a job in 12 days. At this rate how many more days will it take him to finish the job?

Choices

Choice (4)Response

a.

23

b.

27

c.

24

d.

26

Edit

Question 580

Question MCQ▾

can do a piece of work in 20 days and can do alone it in 10 days. B works at it for 5 days and then leaves. alone can finish the remaining work in________.

Choices

Choice (4)Response

a.

10 days

b.

10.5 days

c.

5 days

d.

11 days

Edit

Question 581

Question MCQ▾

Two numbers are in the ratio 7: 9. If each number is increased by 18, the ratio becomes 9: 11. The numbers are________.

Choices

Choice (4)Response

a.

35,81

b.

63,81

c.

63,85

d.

65,35

Edit

Question 582

Question MCQ▾

A bag contains 50 paise, 25 paise and 10 paise coins in the ratio 1: 2: 3. If their total value is ₹ 26, the number of 50 paise coins is ________.

Choices

Choice (4)Response

a.

50

b.

80

c.

30

d.

20

Edit

Question 583

Question MCQ▾

If , then the value of is________.

Choices

Choice (4)Response

a.

35

b.

31

c.

36

d.

39

Edit

Question 584

Question MCQ▾

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

Edit