85问答库 > 有一个人患了流感，经过两轮传染后共有81人患了流感，那么每轮传染中

有一个人患了流感，经过两轮传染后共有81人患了流感，那么每轮传染中

2025-04-04 02:47:40
推荐回答（1个）
回答1：

解：设每轮传染中平均一个人传染了x人，则： 1+x+(1+x)x=8 1 -------------- 4分 ∴ , ( 舍 )答：每轮传染中平均一个人传染了8人 。 ---------------------------7分 略

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