[求助]请大家看看TT2这题数学

Q18:

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%

谢谢！

这种2*2的题目最好是画个表格解答,又清楚又快

偶该考试了,不好意思

Please search for existing discussions before you post your questions!

涛涛第2套——GIGI第2套，对应关系：题号按顺序对应.

请优先参考GIGI版GWD2讨论链接
http://forum.chasedream.com/dispbbs.asp?boardID=22&ID=58619

2-18 http://forum.chasedream.com/dispbbs.asp?BoardID=22&ID=67198