A dishonest seller sells the goods at 10% loss on the cost price but uses 25% less weight. What is the percentage profit or loss?

A 25% profit

B 20% loss

C 22% loss

D 20% profit

E 24% profit

Correct Answer: Option D

Suppose , he buys a good of 1 kg at 100 tk

Hence, cost price = 100 tk /kg

Since, he sells the goods at 10% loss on the cost price but uses 25% less weight

So , He sells 750gm of the goods at 90 tk

Hence, Selling price of 1000gm of the goods = ( 90/750) ×1000 = 120 tk

Total profit = 120-100 = 20 tk on a cost price of 100 tk

Hence, Profit percentage = 20%