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## QuestionMathsClass 7

A man borrowed $$Rs.\ 7200$$ from a bank for $$3$$ years at $$18\%$$ p.a. Find the interest and the amount he will have to pay after the stipulated time.

Principal $$(P)$$ $$=Rs. \ 7200$$
Rate $$(R\%)$$$$=18\%$$ per annum
Time$$(T)=3$$years
Simple interest $$=\frac{P\times R\times T}{100}$$
$$=Rs. \ \frac {7200\times 18\times 3}{100}$$
$$\implies Rs.\ 72\times 18\times 3 = Rs. \ 3888$$
Amount $$=$$ Principal $$+$$ Interest
$$=Rs. \ 7200+Rs. \ 3888$$
$$=Rs. \ 11088$$