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Q.
If radius and height of a cylinder increase by 20% and15% respectively. then what is the % change in curved surface area?
A.
41%
B.
38%
C.
33%
D.
0.44
View Answer
Correct choice: B
Explanation:
% Change in Curved Surface Area is given by %Change in radius + %Change in height + %Change in radius × %Change in height/ 100 ⇒+20 + 15 + 20×15/100 = 38%
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