Question

a sum of money invested at compound interest amount to 800 in 3 years and 840 in 4 years. what is the rate of interest

Answer 1

Hope this will help you


Step-by-step explanation:

S.I. on Rs. 800 for 1 year = Rs. (840 - 800) = Rs. 40.

Rate =  (100*40/80*1)% = 5%

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