When the price of an article was reduced by 35% its sale increased by 80%. What was the net effect on the sale? Choose the correct choice from the following answers.
A) 17 % increase	B) 44 % decrease	C) 60 % increase	D) 66 % increase	E) 66 % decrease

Rationale: "if n items are sold for $ p each , revenue is $ np . if we reduce the price by 35 % , the new price is 0.65 p . if we increase the number sold by 80 % , the new number sold is 1.8 n . so the new revenue is ( 0.65 p ) ( 1.8 n ) = 1.17 np , which is 1.17 times the old revenue , so is 17 % greater . answer : a"
Answer: A