Q82
If the radius of the base of a right circular cylinder is halved, keeping the height same, what is the ratio of the volume of the reduced cylinder to that of the original one ?
A.
1 : 2
B.
1 : 4
AnswerC.
1 : 8
D.
8 : 1
Answer: Option B
Solution
Answer: Option B
Solution:
Let original radius = RThen, new radius =