Answer:
10 vans and 6 buses.
Step-by-step explanation:
Minimize cost = 350*x + 975*y
subject to
40*y + 8*x >= 320 (regular seats needed)
y + 3*x >= 36 (handicap seats needed)
x >= 0
y >= 0
where
x, number of vans rented
y, number of buses rented
This is a linear programing problem. In this kind of problem, it is known that the optimal solution is on a vertix of the feasible region. In the figure attached, feasible region can be seen. For the vertices costs are
vertex cost
(0, 36) $35100
(10, 6) $9350
(40, 0) $14000
