IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 441 - 446 of 1042

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Question 441

Question

MCQ▾

The radii of the bases of two cylinders are in the ratio of 2: 3 respectively and their heights are in the ratio 1: 2 respectively, find the ratio of their volumes.

Choices

Choice (4)Response

a.

3: 4

b.

1: 3

c.

3: 2

d.

2: 9

Question 442

Question

MCQ▾

Three solid cubes of sides 3 cm, 4 cm and 5 cm are melted to form a new cube. Find the surface area of the cube so formed.

Choices

Choice (4)Response

a.

b.

c.

d.

Question 443

Question

MCQ▾

Between a square of perimeter 64 cm and a circle of circumference 64 cm, which figure has larger area and by how much?

Choices

Choice (4)Response

a.

Circle, 60

b.

Circle, 70

c.

Square, 70

d.

Question does not provide sufficient data or is vague

Question 444

Question

MCQ▾

A square garden measuring 5 m on a side is surrounded by a 1 m wide path. What is the area of the path?

A Square Garden with 5 M Side Surrounded by 1 M Wide Path

Choices

Choice (4)Response

a.

b.

c.

d.

Question 445

Question

MCQ▾

The radii of the bases of two cylinders are in the ratio of 3: 4 respectively and their heights are in the ratio 4: 5 respectively, find the ratio of their volumes.

Choices

Choice (4)Response

a.

3: 20

b.

20: 3

c.

20: 9

d.

9: 20

Question 446

Question

MCQ▾

A rectangle field has its length and breadth in the ratio 2: 3. Its area is 3.82 hectares. The cost of fencing it at ₹ 2 per meter is________.

Choices

Choice (4)Response

a.

₹ 1500

b.

₹ 1100

c.

₹ 1600

d.

₹ 1000