Q130
N solid metallic spherical balls are melted and recast into a cylindrical rod whose radius is 3 times that of a spherical ball and height is 4 times the radius of a spherical ball. The value of N is:
A.
30
B.
27
AnswerC.
24
D.
36
Answer: Option B
Solution
Answer: Option B
Solution:
\begin{array}{*{20}{c}}
{}&{{\text{Sphere}}}&{}&{{\text{Cylinder}}} \\
{{\text{Radius}} \to }&R&:&{3R} \\
{{\text{Height}} \to }& - &{}&{4R}
\end{array}