# Cube and Cube Roots (IMO- Mathematics Olympiad Class 8): Questions 1 - 8 of 58

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## Question number: 1

» Cube and Cube Roots

MCQ▾

### Question

Three numbers are in the ratio of 4: 3: 2. The sum of their cubes is 21384. The numbers are________.

### Choices

Choice (4) Response

a.

b.

15: 30: 45

c.

d.

6: 12: 18

## Question number: 2

» Cube and Cube Roots

MCQ▾

### Question

The value of is ________.

### Choices

Choice (4) Response

a.

8.5

b.

4.00

c.

2.5

d.

7.5

## Question number: 3

» Cube and Cube Roots

MCQ▾

### Question

If , then is equal to________.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 4

» Cube and Cube Roots

MCQ▾

### Question

The cube of a number is four times of then find where

### Choices

Choice (4) Response

a.

4

b.

2

c.

1

d.

0

## Question number: 5

» Cube and Cube Roots

MCQ▾

=

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 6

» Cube and Cube Roots

True-False▾

### Following Statement is true or false:

The sum of the cubes of first n natural numbers is equal to the square of their sum. This statement is true or not?

## Question number: 7

» Cube and Cube Roots

MCQ▾

### Question

The cube root of is________.

### Choices

Choice (4) Response

a.

16

b.

8

c.

64

d.

4

## Question number: 8

» Cube and Cube Roots

MCQ▾

### Question

In the five digit number 13ab4, a is the greatest single digit perfect cube and a is greater four times of b. then find the sum of the number and its cube root is________.

### Choices

Choice (4) Response

a.

13824

b.

13825

c.

13820

d.

13848

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