Question

Even after reducing the marked price of a transistor by Rs. $32$ a shopkeeper makes a profit of $15\%$. If the cost price be Rs. $320$. What percentage of profit would he have made, if he had sold the transistor at the marked price?

Answer 1

C.P. $=$ Rs. $320$, profit $=15\%$, S.P. $=$ Rs.$(\frac{115}{100}\times 320)=$ Rs. $368$
Marked price $=$ Rs. $(368+32)=$ Rs. $400$
$\therefore$ Required profit $\%=$ $(\frac{80}{320}\times 100)\%=25\%$