问题描述：
英语翻译
Professor Mark was asked how old his two children ,Peter and Paul ,were ." I can't remember," said the absentminded professor ." But I do remember that the difference in their age is two years .And if you multiply theiy age ,you get 120 .Peter is the older of the two ." How old are they?
Professor Mark was asked how old his two children ,Peter and Paul ,were ." I can't remember," said the absentminded professor ." But I do remember that the difference in their age is two years .And if you multiply theiy age ,you get 120 .Peter is the older of the two ." How old are they?
问题解答：
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