Q72
If a hollow sphere of internal and external diameters 4 cm and 8 cm respectively is melted into a cylinder of base diameter 8 cm, then the height of the cylinder is :
A.
4 cm
B.
cm
C.
cm
AnswerD.
5 cm
Answer: Option C
Solution
Answer: Option C
Solution:
Let the height of the cylinder be h cmThen,