On a certain transatlantic crossing, 30 percent of a ship's passengers held round-trip tickets and also took their cars abroad the ship. If 60 percent of the passengers with round-trip tickets did not take their cars abroad the ship, what percent of the ship's passengers held round-trip tickets?	Pick:
A) 33.3 %	B) 40 %	C) 50 %	D) 60 %	E) 75 %

Rationale: "0.30 p = rt + c 0.6 ( rt ) = no c = > 0.40 ( rt ) had c 0.30 p = 0.40 ( rt ) rt / p = 3 / 4 = 75 % answer - e"
Answer: E