Answer:
$36,000
Step-by-step explanation:
Sales $180,000
Less:
Opening Inventory ($54,000)
Purchases ($90,000)
Closing Inventory $36,000
or
Gross Profit (180,000*40%) $72,000
Add;Opening inventory $54,000
Purchases $ 90,000
Less: Sales ($180,000)
Closing Inventory $36,000