We run a business that rents out canoes and kayaks. A canoe rental costs $11 per day, and a kayak rental costs $16 dollars per day. One day, our business rents out 4 canoes for every 3 kayaks and receives a total of $460 in revenue. How many more canoes than kayaks were rented out?  Pick:	A) 8	B) 7	C) 6	D) 5	E) 4

Rationale: "let x be the number of canoes . then 3 x / 4 is the number of kayaks . 11 x + ( 3 x / 4 ) * 16 = 460 11 x + 12 x = 460 23 x = 460 x = 20 ( canoes ) 3 x / 4 = 15 ( kayaks ) there were 20 - 15 = 5 more canoes rented out . the answer is d ."
Answer: D