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A certain sum quadruples in 4 years under compound interest at a certain rate of interest. In how many years would the...
Solution
Let, P be the sum and the amount at the end of the four years is 4P.r = rate of interest per annumThe, R4 = 4Let after...
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If a principal amount P is compounded annually at the rate of r% per annum, then the amount at the end of the nth year...
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