鸡和兔共有112只,兔脚比鸡脚多64只,鸡兔各有几只?

问题描述:

鸡和兔共有112只,兔脚比鸡脚多64只,鸡兔各有几只?

设兔有x只.
4x - 2(112 - x) = 64
4x - 224 + 2x = 64
6x = 64 + 224
6x = 288
x = 288 ÷ 6
x = 48
112 - 48 = 64只
答:鸡有64只,兔有48只.