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The curved surface area of a cylinder is...

The curved surface area of a cylinder is five times the area of a base. Find the ratio of radius and height of the cylinder.
एक सिलेंडर का घुमावदार सतह क्षेत्रफल उसके आधार के क्षेत्रफल का पांच गुना है। सिलेंडर के त्रिज्या और ऊंचाई के अनुपात का पता लगाएं।

A

`2 : 5`

B

`2 : 3`

C

`3 : 4`

D

`3 : 5`

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