Question

An electrician sell a room heater for $Rs3220$, gaining $\frac{1}{6}$ of its cost price. Find his gain percentage ?

Answer 1

Cost of room heater=$Rs3220$

Gain in room heater$=\frac{1}{6}\ast 3220=536.66$

Gain

$=(536.66\ast \frac{100}{3220})$

$=\left(\frac{53666}{3220}\right)$

$=16.67$

Therefore,$16.67$ is the gain percentage of room heater.