At $1.50 per gallon, Alana purchases 50 gallons of gasoline weekly, Bart purchases 20 gallons weekly, and Caitlin purchases 20 gallons weekly. One point on their joint demand curve for gasoline would be Q =: (1) 90 gallons per week, P = $1.50. (2) 90 gallons per week, P = $4.50. (3) 30 gallons per week, P = $4.50. (4) 30 gallons per week, P = $1.50.
Can someone please help me in finding out the precise answer from the above options.