साधारण ब्याज दर से कोई राशि 7 वर्ष में द...

साधारण ब्याज दर से कोई राशि 7 वर्ष में दुगुनी हो जाती है। उतनी ही राशि उसी ब्याज दर पर कितने वर्षों में चार गुनी हो जाएगी?

A

14

B

28

C

21

D

10

लिखित उत्तर

Verified by Experts

The correct Answer is:

C

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