IMO- Mathematics Olympiad Class 9: Questions 487 - 493 of 919

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Question number: 487

» Everyday Mathematics

MCQ▾

Question

P and Q can do a piece of work in 10 days and P alone can do it in 20 days. The time taken by Q alone to do the work is ________

Choices

Choice (4) Response
a.

19 days

b.

20 days

c.

10 days

d.

22 days

Question number: 488

» Statistics and Probability

MCQ▾

Question

If a number x is chosen at random from the numbers 1, 2, 3 and the number y is selected from 1, 4, 9, and then P(xy<9) is________

Choices

Choice (4) Response
a.

92

b.

29

c.

95

d.

59

Question number: 489

» Everyday Mathematics

MCQ▾

Question

A sum was put a simple interest at a certain rate for 3 years. Had it been put at 4% higher rate, it would have fetched Rs. 80 more. The sum is________

Choices

Choice (4) Response
a.

Rs. 750

b.

Rs. 820

c.

Rs. 700

d.

Rs. 940

Question number: 490

» Analytical Reasoning and Logical Reasoning

MCQ▾

Question

Choose the odd numeral pair/group

Choices

Choice (4) Response
a.

93

b.

1218

c.

13112

d.

246

Question number: 491

» Analytical Reasoning and Logical Reasoning

MCQ▾

Question

Which of the following words will come 2nd in the dictionary?

Choices

Choice (4) Response
a.

Name

b.

Came

c.

Fame

d.

Shame

Question number: 492

» Statistics and Probability

MCQ▾

Question

A contractor employed 18 labourers at Rs. 12 each per day, 10 labourers at Rs. 13.50 each per day, 5 labourers at Rs. 25 each per day and 2 labourers at Rs. 42 each per day. The average wages paid is ________

Choices

Choice (4) Response
a.

Rs. 28

b.

Rs. 24

c.

Rs. 20

d.

Rs. 16

Question number: 493

» Everyday Mathematics

MCQ▾

Question

A 200 metres long train crosses a man walking at the speed of 9 km/hr in the opposite direction in 9 seconds. The speed of the train in km/hr is ________

Choices

Choice (4) Response
a.

66.52

b.

78.56

c.

96.54

d.

75.84

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