Question

Find the time.
Principal=$Rs4800$
SI=$Rs900$
Rate p.a=$7.5\%$
Time =?

Answer 1

Given that,

$P=4800$

$S.I=900$

$Rate=7.5$%

We know that,

Simple interst$=\frac{p\times r\times t}{100}$

$\begin{array}{c}900=\frac{4800\times 7.5\times t}{100}\\ t=\frac{900\times 100}{4800\times 7.5}\\ =\frac{90000}{36000}\end{array}$

$=2.5$

Hence,

We get $t=2\frac{1}{2}$ years