MC Qu. 09-297 (Algo) The table shows three short-run...

The table shows three short-run cost schedules for three plants of different sizes that a firm might build in the long run.

Plant 1	Plant 2	Plant 3
Output	ATC	Output	ATC	Output	ATC
10	$ 10	10	$ 15	10	$ 20
20	9	20	10	20	15
30	8	30	7	30	10
40	9	40	10	40	8
50	10	50	14	50	9

What is the long-run average cost of producing 10 units of output?

Multiple Choice

• $15
• $20
• $10
• $45