Rs.8000 become Rs.9261 in a certain interval of time at the rate of 5% per annum of C.I. Find the time?

A. 4 years
B. 6 years
C. 2 years
D. 3 years

Explanation:

9261 = 8000(21/20)^N

(21/20)³ = (21/20)^N => N = 3

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