Question

Find the time when the following are given.
Principal$=Rs700$
Rate $=18$ p.a
$I=Rs78$

Answer 1

As we know that,

$S.I.=\frac{P\times R\times t}{100}$

Given:-

$S.I.=Rs.78$

$R=18\%$ per annum

$t=?$

$P=Rs.700$

Therefore,

$78=\frac{700\times 18\times t}{100}$

$\Rightarrow t=\frac{7800}{18\times 700}\approx \frac{39}{28}\text{years}$