Question

Find the simple interest and the amount when:

Principal = Rs 2650, rate = 8% p.a. and time = $2\frac{1}{2}$ years

Answer 1

$\text{P}=\text{Rs}.\text{265}0,\text{R}=\text{8}\%,\text{T=2}\frac{\text{1}}{\text{2}}\text{years =}\frac{\text{5}}{\text{2}}\text{years}$

$\text{S.I.}=\frac{\text{P×R×T}}{\text{100}}\text{=}\frac{\text{2650×8×5}}{\text{100×2}}$

$$\begin{gathered} \begin{array}{l}=\mathrm{Rs}.\mathrm{}530\\ \mathrm{Amount}=\mathrm{P}+\mathrm{S}.\mathrm{I}.\end{array} \\ =2650+530 \\ =\mathrm{Rs}.3180 \end{gathered}$$