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Problem AG: 三人的年龄问题-2
Problem AG: 三人的年龄问题-2
[Creator :
]
Time Limit :
1.000
sec
Memory Limit :
128 MiB
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ProblemList
Solved: 19
Submit Num: 31
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Description
小文今年n岁,爸爸,妈妈的年龄和是81岁,请问:多年后他们三个的平均年龄是40岁?
Sample Input
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9
Sample Output
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10