Answer:
a. Qx =9, Qy=9
Explanation:
As per the given data
Q = QX = QY
MRX = 150 - 6QX = 150 - 6Q
MRY = 30 - 4QY = 30 - 4Q
MC = 10Q
Now calculate the Marginal revenue as follow
MR = MRX + MRY
MR = 150 - 6Q + 30 - 4Q
MR = 150 + 30 - 6Q - 4Q
MR = 180 - 10Q
The Equilibrium of the producer will be
MR = MC
180 - 10Q = 10Q
180 = 10Q + 10Q
180 = 20Q
Q = 180 / 20
Q = 9
As we know
Q = Qx = QY
Hence, the value of Qx and QY is 9