7位老师带领46名学生到公园游玩。成人票每人30元，学生票每人15元，团体票(30人及以上)每人18元。最少要花多少钱？

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='31554' and id < 2528006 and id<>'2528006' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31554' and id > 2528006 and id<>'2528006' order by id asc limit 5