Cube and Cube Roots (IMO Level 1- Mathematics Olympiad (SOF) Class 8): Questions 1 - 9 of 59

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Question number: 1

» Cube and Cube Roots

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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.

6: 12: 18

c.

15: 30: 45

d.

Question number: 2

» Cube and Cube Roots

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MCQ▾

Question

The value of is ________.

Choices

Choice (4) Response

a.

4.00

b.

2.5

c.

7.5

d.

8.5

Question number: 3

» Cube and Cube Roots

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MCQ▾

Question

If , then is equal to________.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 4

» Cube and Cube Roots

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MCQ▾

Question

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

Choices

Choice (4) Response

a.

1

b.

0

c.

2

d.

4

Question number: 5

» Cube and Cube Roots

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MCQ▾

Question

=

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 6

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True-False▾

Question

Is the Following Statement 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

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MCQ▾

Question

The cube root of is________.

Choices

Choice (4) Response

a.

64

b.

4

c.

16

d.

8

Question number: 8

» Cube and Cube Roots

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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.

13848

b.

13820

c.

13825

d.

13824

Question number: 9

» Cube and Cube Roots

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MCQ▾

Question

Find the value of .

Choices

Choice (4) Response

a.

30

b.

70

c.

50

d.

31

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