Question

at what rate percent will rs 2000 amount be rs.2315.25in3 years at compound interest ?

Answer 1

Given

Amout=2315.25

Principal =2000

Time=3yr


$a = p(1 + \frac{r}{100} ) ^{n}$

$2315.25 = 2000(1 + \frac{r}{100} ) ^{3}$

$\frac{2315.25}{2000} = (1 + \frac{r}{100} ) ^{3}$

$\sqrt[3]{ \frac{2315.25}{2000} } = (1 + \frac{r}{100} )$

$1.05 = (1 + \frac{r}{100} )$

$0.05 = \frac{r}{100}$

$r = 0.05 \times 100$

R=5%


This is ur ans hope it will help you