鸡与兔共100只,鸡的腿数比兔的腿数少28条,问鸡与兔各有几只?
问题描述:
鸡与兔共100只,鸡的腿数比兔的腿数少28条,问鸡与兔各有几只?
答
设兔有x只,则鸡有100-x只,4x-(100-x)×2=28, 4x-200+2x=28, 6x=228, &nbs...
鸡与兔共100只,鸡的腿数比兔的腿数少28条,问鸡与兔各有几只?
设兔有x只,则鸡有100-x只,4x-(100-x)×2=28, 4x-200+2x=28, 6x=228, &nbs...