GWD-2-18

bella

On a certain transatlantic crossing, 20 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?

A.    33 1/3%

B.     40%

C.     50%

D.    60%

E.     66 2/3%

选c

feiya

20%/（1-60%）=50%。A的意思是33.3%，D的意思是66.7%