IMO- Mathematics Olympiad (SOF) Class 9: Questions 609 - 615 of 918

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Question number: 609

» Statistics and Probability

MCQ▾

Question

A contractor employed 10 labourers at Rs. 60 each per day, 12 labourers at Rs. 40 each per day, 8 labourers at Rs. 20 each per day and 6 labourers at Rs. 10 each per day. The average wages paid is ________

Choices

Choice (4) Response

a.

Rs. 60

b.

Rs. 36

c.

Rs. 26

d.

Rs. 40

Question number: 610

» Statistics and Probability

MCQ▾

Question

A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is double that of a red ball, find the n umber of blue balls in the bag.

Choices

Choice (4) Response

a.

15

b.

10

c.

5

d.

20

Question number: 611

» Polynomials

MCQ▾

Question

If , and then value of x, y, z when , is________.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 612

» Statistics and Probability

MCQ▾

Question

Two coins are tossed simultaneously. The probability of getting at least one head is ________

Choices

Choice (4) Response

a.

b.

c.

0

d.

Question number: 613

» Analytical Reasoning and Logical Reasoning

MCQ▾

Question

In a telephone directory which of the following names will appear in the third position

Choices

Choice (4) Response

a.

Mahender

b.

Mahindra

c.

Mahinder

d.

Mahendra

Question number: 614

» Statistics and Probability

MCQ▾

Question

The mean of 13 observations is 14. If the mean of the first 7 observations is 12 and that of the last 7 observations is 16, then the 7th observation is ________

Choices

Choice (4) Response

a.

12

b.

16

c.

14

d.

18

Question number: 615

» Analytical Reasoning and Logical Reasoning

MCQ▾

Question

In the given question, which number can replace the question mark

Given the multiple lines – find the missing value

Given the Multiple Lines – Find the Missing Value

Given the multiple lines and number can replaced the question mark

Choices

Choice (4) Response

a.

9

b.

7

c.

36

d.

1

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