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13问答网 > 有鸡鸭鹅一共59只,鸡的只数比鸭2倍少3只,鹅的只数是鸭的4倍多6只,鸡鸭鹅各有多少只？

有鸡鸭鹅一共59只,鸡的只数比鸭2倍少3只,鹅的只数是鸭的4倍多6只,鸡鸭鹅各有多少只？

2025-03-15 07:09:53

推荐回答（3个）

回答1：

有鸡鸭鹅一共59只，鸡的只数比鸭的2倍少3只，鹅的只数是鸭的4倍多6尺，据上述，可设鸭的数量为X只，就有鸡的只数=2X-3，鹅的只数=4X+6，那么2X-3+X+4X+6=59，X=8(即鸭有8只)2X-3=13(即鸡有13只)，4X+6=38(即鹅有38只)。

回答2：

此题用方程解比较容易理解，等量关系:鸡十鸭十鹅=总只数，
解:设鸭有a只，依题意可得
(2a一3)十a十(4a十6)=59
解得a=8
8X2一3=13(只)，8X4十6=38(只)
答:鸡有13只，鸭有8只，鹅有38只。

回答3：

设鸭子x只
x+（2x-3）+（4x+6）=59
解出x=8
鸡是2*8-3=13
鸭是8
鹅是4*8+6=38

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