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A sum of money, deposited at some rate percent per annum of compound interest, doubles itself in 4 years. In how many years will it become 16 times of itself at the same rate ?
चक्रवृद्धि व्याज की किसी वार्षिक प्रतिशत दर से कोई धनराशि 4 वर्ष में स्वयं की दोगुनी हो जाती है। उसी दर से, कितने वर्ष में यह स्वयं की 16 गुनी होगी?

A

16

B

12

C

10

D

8

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CHAMPION PUBLICATION-2010 TIER-II PAPER(24)-EXERCISE
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