IMO Level 2- Mathematics Olympiad (SOF) Class 9: Questions 1 - 4 of 76

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Question number: 1

» Analytical Reasoning and Logical Reasoning

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Appeared in Year: 2014

MCQ▾

Question

Poiting to Mohit, Sana said, “His mother’s brother is the father of my son Nitin. ” How is Mohit related to Sana?

Choices

Choice (4)Response

a.

Niece

b.

Nephew

c.

Brother

d.

Uncle

Question number: 2

» Everyday Mathematics

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MCQ▾

Question

Sixteen years ago, Tanya’s grandfather was 8 times older to her. He would be 3 times of her age 8 years from now. Eight years ago, what was the ratio of Tanya’s age to that of her grandfather?

Choices

Choice (4)Response

a.

1: 5

b.

3: 8

c.

1: 2

d.

None of the above

Question number: 3

» Surface Area and Volumes

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MCQ▾

Question

Consider the volumes of the following:

1. A parallelogram of length 5 cm, breadth 3 cm and height 4 cm

2. A cube of each side 4 cm

3. A cylinder of radius 3 cm and length 3 cm

4. A sphere of radius 3 cm

The volumes of these in the decreasing order is ________.

Choices

Choice (4)Response

a.

4,3, 2,1

b.

4,2, 3,1

c.

1,2, 3,4

d.

1,3, 2,4

Question number: 4

» Surface Area and Volumes

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MCQ▾

Question

A large solid sphere of diameter 15 m is melted and recast into several small spheres of diameter 3 m. What is the percentage increase in the surface area of the smaller spheres over that of the large sphere?

Choices

Choice (4)Response

a.

Can’t be determined

b.

c.

d.

Both a. and c. are correct

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