Everyday Mathematics (IMO Level 2- Mathematics Olympiad (SOF) Class 9): Questions 1 - 3 of 16

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Question number: 1

» Everyday Mathematics

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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: 2

» Everyday Mathematics

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Kamla has a triangular field with sides where she grew wheat. In another triangular field with sides adjacent to the previous field, she wanted to grow potatoes and onions. She divided the field in two parts by joining the mid-point of the longest side to the opposite vertex and grew potatoes in one part and onions in the other part. How much area (in hectares) has been used for wheat, potatoes and onions? (1 hectare ).

Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

Question number: 3

» Everyday Mathematics

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In a bullet the gun powder is to be filled up inside the metallic enclosure. The metallic enclosure is made up of a cylindrical base and conical top with the base of radius 5 cm. The ratio of height of cylinder and cone is 3: 2. A cylindrical hole is drilled through the metal ‘solid with height two-third the height of metal solid. What would be the radius of the hole, so that the volume of the hole (in which gun powder is to be filled up) is one-third the volume of metal solid after drilling?

Choices

Choice (4)Response

a.

cm

b.

cm

c.

cm

d.

Question does not provide sufficient data or is vague

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