Question

calculate the amount and the compound interest on rupees 20000 for 2 years at the rate 5% per annum compounded annually​

Answer 1

Answer:

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Answer 2

$a = p(1 + \frac{r}{100} ) ^{n} \\ a = 20000(1 + \frac{5}{100} ) ^{2} \\ a = 20000(1 + \frac{1}{20} ) ^{2} \\ a = 20000( \frac{20 + 1}{20} ) ^{2} \\ a = 20000( \frac{21}{20} ) ^{2} \\ a = 20000 \times \frac{441}{400} \\ a = 22050$

So amount = Rs. 22050

Interest = Amount - Principal

= 22050 - 20000

= Rs. 2050