How many terms of G.P. 3, 3^(2) , 3^(3) ...

How many terms of G.P. `3, 3^(2) , 3^(3) , … ` are needed to give the sum 120?

A

`5`

B

`4`

C

`3`

D

none of these

लिखित उत्तर

Verified by Experts

The correct Answer is:

B

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