Exhibit 6-20
-Refer to Exhibit 6-20. If D, D' and D'' represents the demand curves for the only three consumers in a market, then the market quantity demanded at a price of $45 will be:
A) 50
B) 70
C) 90
D) 110
E) 130

Question

Exhibit 6-20 
-Refer to Exhibit 6-20. If D, D' and D'' represents the demand curves for the only three consumers in a market, then the market quantity demanded at a price of $45 will be:
A) 50 
B) 70 
C) 90 
D) 110 
E) 130

Quizplus · Accepted Answer

The market quantity demanded is the sum of the quantities demanded by all consumers at a given price. If D, D', and D'' are the demand curves for the three consumers, you add the quantities each demands at the price of $45 to get the total market demand.

Exhibit 6-20 -Refer to Exhibit 6-20. If D, D' and D'' Represents