Answer:
$22.37 units
Step-by-step explanation:
Using the formula for Economic order quantity (EOQ) to solve the above question.
EOQ = √ 2 × Annual demand × ordering cost per order / Carrying cost per unit
= √ 2 × 1,000 × 25 / 100
= 22.37 units.
The EOQ is 22.37 units, hence should be used by Ray to order each time.