### A dishonest dealer marks up the price of his goods by 20% and gives a discount of 10% to the customer. He also uses a 900 gram weight instead of a 1 kilogram weight. Find his percentage profit due to these maneuvers?

A. 8% B. 12% C. 20% D. 16% Answer: Option C
He sells only 900 grams when he takes the money for 1 kg. and he sells at a 8% profit (20% markup, 10% discount) Hence, his selling price is Rs. 108 for 900 grams % profit = $\frac{18}{90} \times 100=20 \%$