Math, asked by Bebiraneedas, 1 year ago

Find the time in yrs,in which Rs.4000 will produce Rs.630.50 as compound interest at 5 percent p.a interest being compounded annually

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Answered by Anonymous
170
ci= p{ (1+r/100)^n - 1}
630.50= 4000{ (1 + 5/100)^n -1}
630.50/4000=(21/20)^n -1
4630.5/4000=(21/20)^n
9261/8000=(21/20)^n
(21/20)^3=(21/20)^n
n=3 yr ...
please mark it as a brainliest
Answered by nidhisaji
77

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