Question

Principal=20,000
Rate of interest=10%per annum
Time=2years
find the compound interest for given principal,rate and time when compounded halfyearly
​

Answer 1

$principle \: = 20000$

$rate \: of \: intrest \: = 10\%$

$time \: = 2 \: years$

$use \: formula$

$\implies \: a \: =( p \: + \frac{r}{100})t$

$\implies \: a \: = 20000 \times \frac{121}{100}$

$\implies \: 24200$

$compound \: interest \: = a - p$

$\implies 24200 - 20000$

$\implies \: 4200$