Answer:
China's opportunity cost of producing 1 bottle of milk is equal to one batch of pumpkins.
Step-by-step explanation:
Given that in 2 hours, China can produce 6 bottles of milk, and in 5 hours, it can produce 15 batches of pumpkins, to determine what is the country's opportunity cost of producing 1 bottle of milk (in terms of batches of pumpkins), the following calculation must be performed:
Milk = 6/2 = 3 per hour
Batches of pumpkins = 15/5 = 3 per hour
3/3 = 1
Therefore, China's opportunity cost of producing 1 bottle of milk is equal to 1 batch of pumpkins.