Given: A man sells sugar at 15% profit.
False weights used = 5% less than the actual weight
Concept used: gain = total profit ( i.e., profit from selling + profit from the false weight)/actual CP
Calculation: Let Cost price of sugar = 100
⇒ Selling Price = 115
⇒ False dealing in weight with 5%.
⇒ Actual CP = 100 – 5 = 95
Man’s actual profit = 15 + 5 = Rs. 20
Or,
⇒ Man’s actual profit = SP - CP = 115 – 95 = Rs. 20
∴ Actual Profit percent
=()×100=21% ∴ Actual profit percent is 21()% .