Question

How many years will it take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest?

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Answer 1

$S.I=\frac{P\times R\times T}{100}$
$T=\frac{S.I\times 100}{P\times R}$
$Time=\frac{(100\times 81)}{(450\times 4.5)}years$
$=4years$