Question

principal is 12000 rate 11% time 3 yrs find amount and interest​

Answer 1

Step-by-step explanation:

given that :

principal = 12000

rate = 11%

time = 3years

then according to questions :

$a = p {(1 + \frac{r}{100} )}^{t} \\ \\ = 12000 {(1 + \frac{11}{100} )}^{3} \\ \\ = 12000( \frac{1 00+11 }{100} ) {}^{3} \\ \\ = 12000 { (\frac{111}{100} )}^{3} \\ \\ = 12000 \times \frac{111}{100} \times \frac{111}{100} \times \frac{111}{100} \\ \\ = 16411.572 \\ \\ compound \: interest \: = amount \: - \: principal \\ \\ = 16411.572 - 12000 \\ \\ = 4411.572$