Question

The difference between CI and SI on RS 50000 at 4% annually for 2 yrs will be

Answer 1

$si = \frac{p \times r \times t}{100}$
so
$si = \frac{50000 \times 4 \times 2}{100} = 4000$
$now \\ ci = p({1 + \frac{r}{100} })^{2} - p$
so,,,
$ci = 50000 ({1 + \frac{4\%}{100} })^{2} - 50000$
$ci = 54080 - 50000 = 4080$

$according \: to \: the \: question \\ ci - si = ? \\ 4080 - 4000 = 80$
so the answer is or difference is rupees 80