Question

An amount of RS.200 becomes RS.221/- in 3year at Sl what is the rate %.

Answer 1

Answer:

$si = \frac{pnr}{100}$

where, p = principal; n= time period; r= rate of interest

SI = Amount - Principal = 221-200 = 21

$21 = 200 \times 3 \times \frac{r}{100}$

Rate of interest = 3.5%