Question

Megha bought $10$ note-books for $Rs40$ and sold them at $Rs4.75$ per not-book. Find her gain percent.

Answer 1

The cost of 10 notebooks is $Rs40$.

The selling price for per notebook is $Rs4.75$.

The selling price for 10 notebooks is $Rs4.75\times 10=Rs47.5$.

$Gain=S.P.-C.P.$

$=47.5-40$

$=7.5$

$Gainpercent=\frac{Gain\times 100}{C.P.}$

$=\frac{7.5\times 100}{40}$

$=18.75\%$