1,5辆大车1辆小车,300x5+240=17402,4辆大车3辆小车,300x4+3x240=19203,3辆大车4辆小车,300x3+4x240=18604,2辆大车6辆小车,2x300+6x240=2040这样你明白该怎么租了吧