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Let P be the principal and the rate of i...

Let P be the principal and the rate of interest be `R_1 %` for first year `R_2 %` for second year `R_3 %` for third year and so on and in the last `R_n %` for the nth year. Then the amount A and the compound interest C.I. at the end of n years are given by `A=P(1+R_1/100) (1+ R_2/100) ...... (1+ R_n/100) and C.I. =A-P` respectively.

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