Question

what will be the compound interest on the sum of Rs 7500 after 2 years at the rate of 4 p.c.p.a
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Answer 1

Step-by-step explanation:

$Principle(P) \: = \: 7500 \\ \\ Time(T) \: = \: 2 \: years \\ \\ Rate \: of \: interest(r) = 4\% \\ \\ Amount = P(1 + \frac{R}{100})^{t} \\ \\ = 7500(1 + \frac{4}{100} )^{2} \\ \\ = 7500( \frac{114}{100} )^{2} \\ \\ 7500 \times \frac{114}{100} \times \frac{114}{100} \\ \\ 75 \times 114 \times \frac{114}{100} \\ \\ 8550 \times \frac{114}{100} \\ \\ 855 \times \frac{114}{10} \\ \\ \frac{97470}{10} \\ \\ = 9747 \\ \\ Compound \: Interest = Amount - Principle \\ \\ = 9747 - 7500 \\ \\ 2247 \: \: ans.$

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