Answer:
Volume of the cylinder = 
Step-by-step explanation:
Height(h) of the cylinder = 
Radius(r) of the base= 
Volume of a cylinder is:
= 
As,

Putting the values in the formula:
Volume is:

The volume of the cylinder is : 
60 = 0.20x
60/0.20 = x
300 = x <== so 60 minutes is 20% of 300 minutes