A plant manager is attempting to determine the production schedule of various products to maximize profit. assume that a machine hour constraint is binding. if the original amount of machine hours available is 200 minutes, and the range of feasability is from 130 minutes to 300 minutes, providing two additional machine hours will result in:
1) the same product mix, different total profit
2) a different product mix, same total profit as before
3) the same product mix, same total profit
4) a different product mix, different total profit