Answer:
$980
Explanation:
Formula for Economic Order Quantity
Q = square root of (2*Annual demand* Order Cost)/Holding Cost
Where Q = Economic order quantity, which is 28 in our question.
28 = square root of (2* (15 units per month *12 months)* Order cost)/0.25*
28 = square root of 2*180*order cost/0.25
28 = square root of 360*order cost/0.25* (180 units *$10 per unit)
28= square root of 360* order cost/450 .
Square both sides
784 = 360* order cost/450
Multiply both sides by 450
352,800 = 360* Order cost
Hence order cost = 352800/360 = $980