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?	Pick one.
A) 8% B) 12% C) 20% D) 16% E) None
Solution: 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 = (18/90)*100= 
<gadget id="calculator">(18/90)*100</gadget>
<output>20</output>
20%.   Answer: Option 20%
<result>C</result>
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?