IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 599 - 605 of 930

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Question 599

Question MCQ▾

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

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Question 600

Question MCQ▾

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

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Question 601

Question MCQ▾

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

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Question 602

Question MCQ▾

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

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Question 603

Question MCQ▾

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 604

Question MCQ▾

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

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Question 605

Question MCQ▾

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

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