Volumes Practice Test 2

Question : 27 of 40

Marks: +1, -0

If the base radius of a cylinder is decreased by 25% and height is increased by 10%, then the curved surface area

Solution:

Change in the curved surface of the cylinder =

(-25+10+{-25×10}/{100})%

= (–15 – 2.5)% = –17.5%
∴ Curved surface of the cylinder will be decreased by 17.5%.

Go to Question:

Prev Question

Next Question