A shopkeeper loses 15%,if an article is sold for $102. What should be the selling price of the article to gain 20%?  Choose the correct choice
A) $ 165	B) $ 174	C) $ 144	D) $ 164	E) $ 183

Rationale: "c $ 144 given that sp = $ 102 and loss = 15 % cp = [ 100 ( sp ) ] / ( 100 - l % ) = ( 100 * 102 ) / 85 = 20 * 6 = $ 120 . to get 20 % profit , new sp = [ ( 100 + p % ) cp ] / 100 = ( 120 * 120 ) / 100 = $ 144"
Answer: C