IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 600 - 606 of 929

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Question number: 600

» Statistics and Probability

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MCQ▾

Question

The mean weight of 120 students in a class is 100 kg. The mean weight of boys is 110 kg while that of the girls is 90 kg. The number of boys and girls are________

Choices

Choice (4) Response

a.

10,50

b.

70,40

c.

40,30

d.

60,60

Question number: 601

» Statistics and Probability

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MCQ▾

Question

The median of the observation 3,5, 9,5, 4,3, 1 is ________

Choices

Choice (4) Response

a.

1

b.

4

c.

5

d.

3

Question number: 602

» Everyday Mathematics

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MCQ▾

Question

In a km. race A beats B by 50 metres or 5 seconds. Then A’s time over the course is ________

Choices

Choice (4) Response

a.

3 minutes 17 seconds

b.

2 minutes 35 seconds

c.

1 minutes 35 seconds

d.

2 minutes 20 seconds

Question number: 603

» Statistics and Probability

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MCQ▾

Question

If the mode of the following data 6,8, 7,6, x, 6,4, 8,7, 4,8, 7 is 6, then value of x is ________

Choices

Choice (4) Response

a.

4

b.

8

c.

1

d.

6

Question number: 604

» Polynomials

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MCQ▾

Question

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 605

» Analytical Reasoning and Logical Reasoning

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MCQ▾

Question

If in the following groups of numbers after adding all the digits of each group, are arranged in decreasing order, then which will be middle group?

853,395,486,249,497,766,914

Choices

Choice (4) Response

a.

497

b.

395

c.

486

d.

766

Question number: 606

» Everyday Mathematics

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MCQ▾

Question

A man rows downstream 40 50 km and upstream 20 30 km, taking 10 20 hours each time. The velocity of current is ________

Choices

Choice (4) Response

a.

2.5 km/hr

b.

3.5 km/hr

c.

0.5 km/hr

d.

1.5 km/hr