Counting by fingures, solution 1 is correct.

來源: 於 2012-09-18 17:08:47 [舊帖] [給我悄悄話] 本文已被閱讀：次

200 people having only money, 20 rejected.
160 people having onlyl time, 50 rejected.
160 people having both, 10 rejected.