2017 · Q115
If the radius of the new spherical container is double the radius of the old spherical container, then the ratio of the volume of the new container and the volume of the old container is
General Mental Ability, Quantitative Aptitude and StatisticsNumber system and arithmetic
- A2 : 1
- B4 : 1
- C8 : 1
- D2𝜋 : 1
Explanation
The volume of a sphere is proportional to the cube of its radius. Doubling the radius multiplies the volume by 2^3 = 8, so the ratio of new to old volume is 8:1. Hence C.