送交者: 草绿 于 July 27, 2009 10:39:27:

回答: lala重新发现对华人来说最容易的事是说``SORRY``：））） 由 逻辑 于 July 27, 2009 08:53:30:

看来13 is the answer given,那么只能按你的理解,并且题目要加一句: Among the 100 people, 50 are blond and 50 are red.

This is a classic example of making a simple problem difficult by using confused wording and not giving sufficient information.如果我给学生出这样的题目,学生得告到院长那去.:)

• 这个条件应该没有必要 - 逻辑 (106 bytes) 19:37:23 7/27/09 (1)
  • This is still a wording problem. - 草绿 (610 bytes) 22:50:07 7/27/09 (0)

加跟贴