If Ashok makes a profit of 25% on the selling price, what will be his profit on C.P.?
Let Selling price be Rs. x ∴ Profit =25 % of x=x4 ⇒ C.P. =x−x4=3x4 Profit per cent on C.P. =(x4÷3x4)×100 =x4×43x×100
=3313 %
If on selling 12 notebooks, a seller makes a profit equal to the selling price of 4 notebooks, what is his percent profit?