Inventory Turnover Determines Purchases via COGS

Steps:

• Compute average inventory: ($8000 +$6000) / 2 = $7000.
• Compute COGS using turnover rate: 5 × $7000 =$35000.
• Rearrange COGS formula: Purchases = COGS + Closing inventory - Opening inventory.
• Solve for purchases: $35000 +$6000 - $8000 =$33000.

Not enough information: Calculated purchases are $33000, not matching any option; problem appears ambiguous or erroneous.

Final answer: Not enough information.