Answer:
1,683 units
Step-by-step explanation:
Given that,
Annual demand, D = 85,000
Price of fuel, P = $2 per gallon
Ordering fee, O = $50 per order
Lead time, L = 5 days
Holding cost per unit, H = 15%
= 0.15 × $2 per gallon
= $0.3
Economic order quantity (EOQ):
=

=

=

= √28,333,333.3
= 1,683.2 or 1,683 units