Question

The amount of a certain sum at compound interest for 2year at 5% is rupee 4410. The sum is

Answer 1

$a = p {(1 + \frac{r}{100} )}^{2} \\ 4410 = p {(1 + \frac{5}{100}) }^{2} \\ 4410 = p {( \frac{21}{20}) }^{2} \\ 4410 = p \frac{441}{400} \\ 10 = \frac{p}{400} \\ p = 4000$