王老师买2千克桔子和3千克香蕉,共用5.7元,李老师买7千克桔子和3千克香蕉共用11.7元,1千克桔子和1千克香蕉各多少元?;o8O7M*l'Q-n
算式:提示6q+}5M.T2d)I(A)A1g6{7L;o8O7M*l'Q-n
答:1千克桔子9a*w;[/n(P/L;a9C3O0A4{8O5y元,1千克香蕉/S(]5h'X*x/p+^8d6w+A9a元。;o8O7M*l'Q-n