论文部分内容阅读
例1父亲是儿子现在年龄时,儿子已10岁,而当儿子是父亲现在的年龄时,父亲将是82岁,问父子两人相差几岁?
Example 1 When the father is the son, the son is 10 years old. When the son is the father’s current age, the father will be 82 years old. How old is the son and the son?