"How many children have you,and how old are they?" asked the guest,a math matics teacher.
"I have three boys," said Hr.Cmith.The product of their ages is 72 and the sum of their ager is the street number.
The guest went to look at the entrance,back and said :the problem is indeterminate.
Yes,that is so,said Mr.Smith,but Istill hope that the oldest boy will some day win the Stan ford competition.
Tell the ages of the boys,stating your reasons.
(答案+翻译）
（好的追加分）