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If the base radius of 2 cylinders are in the ratio 3:4 and their heights are in the ratio of 4:9, then the ratio of their volumes is:
यदि दो बेलनों के आधार की त्रिज्या का अनुपात 3 : 4 है तथा उनकी ऊंचाई का अनुपात 4 : 9 है, तो उनके आयतन का अनुपात क्या होगा ?

A

`2 : 1`

B

`1:4`

C

`1 : 2 `

D

`4:1`

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