Question

if the length of the side of a cube is doubled , then the ratio of volumes of new cube and original cube is - ​

Answer 1

Step-by-step explanation:

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Answer 2

Solution

verified

Correct option is D)

Let the length of orignal cube =a.

Then, Volume of original cube V

1

=a

3

When side is doubled, length of side =2a.

Then, Volume of new cube =V

2

=(2a)

3

=8a

3

Therefore, the require ratio =

V

1

V

2

=

a

3

8a

3

=

1

8

=8:1.