Consider the following LP problem with two constraints: 28X + 5Y >= 140 and 23X + 2Y >= 46. The objective function is Max 11X + 29Y . What combination of X and Y will yield the optimum solution for this problem?

a.

2 , 0

b.

1 , 11.5

c.

0 , 23

d.

infeasible problem

e.

unbounded problem

Two delivery options are available for delivering 70 boxes. The annual holding cost is 31 % of the cost. Assume 365 days per year. 2-day delivery option costs $300 while 6-day delivery option costs $100. Determine a minimum unit cost for a box for which 2-day delivery alternative would be least costly?

a.

280.3

b.

841

c.

560.7

d.

420.5