# Multiplant Monopoly With Third Degree Price Discrimination

I am trying to do an exercise with a Monopoly Firm with 2 production plants that supplies 3 different markets.

I know how to do every case (Multiplant monopoly or third degree price discrimination), but since this exercise combines both cases, I dont know how to solve it.

Can anyone tell me how to proceed? This are the costs for every plant, and the demand for each market, for clarification.

Monopoly with 1 plant and 1 market: $$MR = MC$$
Monopoly with 1 plant and 2 markets: $$MR_1=MR_2=MC$$
Monopoly with 2 plants and 1 market: $$MR = MC_1=MC_2$$