Question

calculate the amount and compound interest on a sum of Rs 25000 at 8% per a? Annum for 3 years compounded annually ​

Answer 1

Step-by-step explanation:

given that :

principal = 25000Rs

rate = 8%

time = 3years

then according to questions:-

$a = p(1 + \frac{r}{100} ) {}^{t} \\ \\ = 25000(1 + \frac{8}{100} ) {}^{3} \\ \\ = 25000(1 + \frac{2}{25} ) {}^{3} \\ \\ = 25000( \frac{25 + 2}{25} ) {}^{3} \\ \\ = 25000( \frac{27}{25} ) {}^{3} \\ \\ 25000 \times \frac{27}{25} \times \frac{27}{25} \times \frac{27}{25} \\ \\ = 1.6 \times 27 \times 27 \times 27 \\ \\ = 31492.8 \\ \\ a = 31492.8 \\ \\ to \: find \: compound \: interest \: \\ \\ compound \: interest = amount - principal \\ \\ = 31492.8 - 25000 \\ \\ = 6492.8 \\ \\ compound \: interest \: = 6492.8$

Answer 2

refer to the attachment....