设兔有x只,则鸡有(x+13)只,
(x+13)×2-4x=16
2x+26-4x=16
2x=10
x=5
则鸡有:13+5=18(只)
答:鸡有18只,兔有5只.
王大娘养了许多鸡和兔,已知鸡比兔多13只,鸡的脚数比兔多16只,鸡和兔各有多少只?
王大娘养了许多鸡和兔,已知鸡比兔多13只,鸡的脚数比兔多16只,鸡和兔各有多少只?
数学人气:297 ℃时间:2019-11-17 22:50:21
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