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In how many years will a sum of money do...

In how many years will a sum of money double itself at 12% per annum?
(A) 8 yr 6 months (B) 6 yr 9 months (C ) 8 yr 4 months (D) 7 yr 6 months

A

6 years 9 months

B

8 years 4 months

C

7 years 6 months

D

8 years 6 months

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The correct Answer is:
B
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