Question

Find the simple interest and the amount when:

Principal = Rs 9600, rate = $7\frac{1}{2}\%$ p.a. and time = 5 months.

Answer 1

$$\begin{gathered} \mathrm{P}=\mathrm{Rs}.9600 \\ \mathrm{R}=7\frac{1}{2}\% \\ \mathrm{T}=5\mathrm{months}=\frac{5}{12}\mathrm{years} \\ \mathrm{S}.\mathrm{I}.=\frac{\mathrm{P}\times \mathrm{R}\times \mathrm{T}}{100} \\ =\frac{9600\times 15\times 5}{100\times 2\times 12} \\ =\mathrm{Rs}.300 \\ \mathrm{Amount}=\mathrm{P}+\mathrm{S}.\mathrm{I}. \\ =9600+300 \\ =\mathrm{Rs}.9900 \end{gathered}$$