买20千克的大米比买10千克的面粉多用8.5元。已知每千克面粉1.45元,每千克大米多少元?/i2C/Z'O+s,t1f3[,q;P5N5H
算式:提示2h8|'J,B'@,H;d0q*T/i2C/Z'O+s,t1f3[,q;P5N5H
答:每千克大米*S*F*P-u.R*s;b元?/i2C/Z'O+s,t1f3[,q;P5N5H