p = 100 - 2Q where Q is total quantity demanded for both firms 1 and 2, respectively. The firm 1's marginal cost is given by MC1(Q1) = 2Q1. The firms 2' marginal cost is given by MC2(Q2) = 4Q2. Based on this information firm 1 and 2's reaction functions are

Answers:

Q1=16-0.5Q2 and Q2 = 16-0.5Q1

Q1=16-0.33Q2 and Q2 = 16-0.33Q1

Q1=16.7-0.33Q2 and Q2 = 12.5 -0.25Q1

Q1=24.6-0.25Q2 and Q2 = 24.6 -0.25Q1