# ON A CERTAIN SUM THE INTREST PAID AFTER 3 YEAR IS RS 450 AT 5 PERCENT RATE OF INTREST PER ANUMN

Given  that,

Interest = $Rs. 450$, Rate = $5%$% and Time = $3 years$

Then,

Principle =

$\frac{Interest \times 100}{ Rate \times time } \\ = \frac{450 \times 100} {5 \times 3} \\ = 3000$

Hence, paid after 3 years

$= 3000 + 450 = Rs. 3450$

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