林老师带42名同学步行去公园划船。租船处有两种船只,大船可载5人,每只20元;小船可载3人,每只15元。林老师最少应交多少钱?;^-M(O5{2T8E:C-L'?-X2q;D
算式:提示-O7w-b:H-b4e;^-M(O5{2T8E:C-L'?-X2q;D
答:林老师最少应交-w)o7F0a8a'o:]'U元钱。;^-M(O5{2T8E:C-L'?-X2q;D