130÷42=3 (vehicle) ... 4 people
Rent 3 buses and/kloc-0 minibuses,
2000× 3+1500×1= 7500 (yuan)
Option 2: Minimize vacancies.
Rent two buses and two minibuses.
2000×2+ 1500×2=7000 (yuan)
A: It is the most economical to rent two buses and two buses.