IMO- Mathematics Olympiad Class 10: Questions 552 - 557 of 889

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Question number: 552

» Everyday Mathematics

MCQ▾

Question

Dharma got married 5 years ago. Today her age is 113 times her age at the time of marriage. Her son’s age is (12) times her age. Her son’s age is ________

Choices

Choice (4) Response
a.

12 years

b.

10 years

c.

13 years

d.

15 years

Question number: 553

» Everyday Mathematics

MCQ▾

Question

One fourth of a head of cows is in the forest. Twice the square root of the head has gone to mountains, and of the remaining, 15 are on the bank of a river. The total number of cows is ________

Choices

Choice (4) Response
a.

63

b.

100

c.

36

d.

6

Question number: 554

» Everyday Mathematics

MCQ▾

Question

P is thrice good a workman as Q and therefore is able to finish a job in 40 days less than Q. Working together they can do it in ________ days.

Choices

Choice (4) Response
a.

15

b.

14

c.

10

d.

16

Question number: 555

» Everyday Mathematics

MCQ▾

Question

A girl calculates that the probability of her winning the first prize in a lottery is 0.15. If 8000 tickets are sold, how many tickets has she bought?

Choices

Choice (4) Response
a.

1600

b.

1200

c.

1800

d.

1400

Question number: 556

» Everyday Mathematics

MCQ▾

Question

A man whose bowling average is 12.4 takes 5 wickets for 26 runs and thereby decreases his average by 0.4. The number of wickets, taken by him, before his last match, is ________

Choices

Choice (4) Response
a.

78

b.

64

c.

85

d.

72

Question number: 557

» Everyday Mathematics

MCQ▾

Question

If compound interest on a certain sum for 2 years 5% is Rs. 451 the simple interest will be ________

Choices

Choice (4) Response
a.

325

b.

352

c.

440

d.

625

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