If Opening Inventory Of Material Is ` 20,000 And Closing Inventory Is ` 40,000.The Average Inventory Amount Will Be:

Question: If Opening Inventory Of Material Is ` 20,000 And Closing Inventory Is ` 40,000.The Average Inventory Amount Will Be:
a. 40,000
b. 30,000
c. 20,000
d. 10,000