A) 16

B) 32

C) 48

**D) 64**

We know that:

Volume of cube = a³

8 = a³

2³= a³

⇒ a= 2 m

when side is doubled,

a = 4 m

so , new volume is:

V = 4³

** V =64 m³ **

**Related MCQs:**

- The volume of gas is inversely proportional to its pressure. What would be its volume when pressure is doubled?
- The ratio of the length of a field to its width is 5:3. find its length if the width is 42 meters?
- Two trains are running in opposite direction with a speed of 62 km/hour and 40 km/hour respectively. If the length of one train is 250 meters and they cross each other in 18 seconds then what is the length of the other train?
- The cost of painting is Rs. 36.50 per kg. If one k of paint covers 16 square feet, how much will it cost to paint the outside of a cube having each side of 8 feet?