Question

The radius of a cylinder is reduced by 5% and the height is increased by 15%. Find the % change in the volume of the cylinder

Answer 1

Answer: 1.037875%

Step-by-step explanation:

Lets say that the radius is 100 and the height is also 100.

After the radius is reduced, it becomes 95.

When the height is increased, it becomes 115.

The original volume is 1000000*Pi

Now the volume is 1037875*Pi

The percent increase is 1.037875%