Maths / Cube and Cube Roots / Properties of Cubes of Numbers

QUESTION
 

The smallest number by which 392 must be multiplied so that the product is a perfect cube, is ____________ .

OPTIONS
A. 

3

B. 

5

C. 

7

D. 

9

Right Option : C

EXPLANATION
Explain TypeExplanation Content
Text

We have,

392 = 2 X 2 X 2 X 7 X 7

So, 392 must be miltiplied by

7 to make it perfect cube.

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