Question

If Principal $=Rs.1,280$, Time $=2\frac{1}{2}$ years, Rate of Interest $=2\frac{3}{4}\%$, then

Simple Interest $=$ ______, Amount $=$ ______.

Answer 1

Given, Principal $=Rs.1,280$

Time $=2\frac{1}{2}years=\frac{5}{2}years$

Rate of intrest $2\frac{3}{4}$% $=\frac{11}{4}$%

Simple Intrest $=\frac{Principal\times Rate\times Time}{100}$

$=1280\times \frac{11}{4}\times \frac{5}{2}\times \frac{1}{100}$

$=\frac{80\times 11}{10}$

$=88$

$\therefore$ Simple Interest $=Rs.88$

Amount = Principal + Simple Interest

$=Rs.1280+Rs.88$

$=\therefore Rs.1368$

$\therefore$ Simple Interest $=Rs.88$

Amount $=Rs.1368$