Question
Quantitative Aptitude Question on Mensuration
A spherical ball of radius 42 cm has a cubical cavity of side length 6 cm inside it. Inside the cubical cavity, there is a spherical ball of radius 2.1 cm. Both these balls are made of a metal having a density of 0.1 grams per cubic cm. What amount of metal has been used approximately? (use pi =22/7)
A
27 kg
B
29 kg
C
31 kg
D
33 kg
Answer
31 kg
Explanation
Solution
The correct answer is (C);31 kg