A shopkeeper expects a gain of 22.5% on his cost price. If in a week, his sale was of Rs. 392, what was his profit?

Question

A shopkeeper sells his goods at cost price but uses a weight of 860 gm instead of kilogram weight.
What is his profit percentage?

Answer 1

Let's cost price =x
Profit =22.5%ofx
Sale price =392
Cp+P=Sp
x+(22.5/100)x=392
x=320=Cp
Profit =Sp-Cp=392-320=72
Ans: Profit is Rs 72

Answer 2

392 => 122.5 => selling price
? => 22.5 => profit
Where 100 => cost price

=72