# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 435 - 440 of 1042

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## Question 435

### Question

MCQ▾

Two cubes have their volumes in the ratio 1: 8. Find the ratio of their surface areas.

### Choices

Choice (4)Response

a.

1: 4

b.

7: 9

c.

1: 9

d.

5: 3

## Question 436

### Question

MCQ▾

A child walked 17 m to cross a rectangular field diagonally. If breadth of field is 8 m, its length is________.

### Choices

Choice (4)Response

a.

15 m

b.

20 m

c.

11 m

d.

12 m

## Question 437

### Question

MCQ▾

Three cubes whose edges are 3 cm, 4 cm, and 5 cm respectively are melted without any loss of metal into a single cube. The edge of new cube is________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 438

### Question

MCQ▾

If a wire is bent into the shape of a square, then the area of the square is 49 sq. cm. When the wire is bent into a semicircular shape, then the area of the semi-circle will be________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 439

### Question

MCQ▾

A child walked 13 m to cross a rectangular field diagonally. If breadth of field is 5 m, its length is________.

### Choices

Choice (4)Response

a.

20 m

b.

12 m

c.

11 m

d.

15 m

## Question 440

### Question

MCQ▾

The perimeter of a trapezoid is 80 cm and its non-parallel sides are each equal to 17 cm and its altitude is 15 cm. Its area is________.

### Choices

Choice (4)Response

a.

b.

c.

d.