# Cube and Cube Roots (IMO- Mathematics Olympiad Class 8): Questions 9 - 16 of 58

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## Question number: 9

» Cube and Cube Roots

MCQ▾

### Question

Find the value of.

### Choices

Choice (4) Response

a.

30

b.

50

c.

31

d.

70

## Question number: 10

» Cube and Cube Roots

MCQ▾

### Question

The value of is ________.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 11

» Cube and Cube Roots

MCQ▾

### Question

Two cubes have volume in the ratio 1: 125. The ratio of the area of the face of one to that of the other is________.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 12

» Cube and Cube Roots

MCQ▾

### Question

The value of is________.

### Choices

Choice (4) Response

a.

14

b.

10

c.

15

d.

12

## Question number: 13

» Cube and Cube Roots

MCQ▾

### Question

The smallest number by which 121 must be multiplied so that the product is a perfect cube is________.

### Choices

Choice (4) Response

a.

11

b.

8

c.

9

d.

10

## Question number: 14

» Cube and Cube Roots

MCQ▾

### Question

The smallest number by which 361 must be multiplied so that the product is a perfect cube is________.

### Choices

Choice (4) Response

a.

15

b.

10

c.

19

d.

11

## Question number: 15

» Cube and Cube Roots

MCQ▾

### Question

Three numbers are in the ratio of 5: 1: 3. The sum of their cubes is 9792. The numbers are________.

### Choices

Choice (4) Response

a.

15: 30: 45

b.

c.

6: 12: 18

d.

## Question number: 16

» Cube and Cube Roots

MCQ▾

### Question

The cube of an odd natural number is________.

### Choices

Choice (4) Response

a.

Odd

b.

Even

c.

Even or odd

d.

Can’t say

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