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  3. The combined ages of Frasier and Niles is 88 years; the combined ages of Niles a

The combined ages of Frasier and Niles is 88 years; the combined ages of Niles a

游客2023-10-20  14
问题 The combined ages of Frasier and Niles is 88 years; the combined ages of Niles and Daphne is 76 years; the combined ages of Frasier and Daphne is 80 years. Then, how old is Frasier?
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答案 46 years old．
解析 (设Frasier的年龄为X，Niles的年龄为Y，Daphne的年龄为Z；故可得出方程式如下：X+Y=88，Y+Z=76，X+Z=80；求解可得出X=46。)
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