The demand curve is P= 100 – (4/5) x Q. What price maximizes total revenues to the firms?
Answer
Total revenue is maximum when the marginal revenue is zero.
MR=100-2*(4/5)Q =100-(8/5)Q ........... An MR curve is a double sloped than an inverse linear demand curve
equating to zero
100-(8/5)Q=0
(8/5)Q=100
Q=100*(5/8)
Q=62.5
P=100-(4/5)*62.5=50
The price is $50
Total revenue (TR) is given by the equation:
TR = P x Q
Substituting the demand equation P= 100 – (4/5) x Q, we get:
TR = (100 – (4/5) x Q) x Q TR = 100Q – (4/5)Q^2
To maximize total revenue, we need to take the derivative of TR with respect to Q and set it equal to zero:
d(TR)/d(Q) = 100 - (8/5)Q = 0 100 = (8/5)Q Q = 62.5
Substituting Q = 62.5 into the demand equation to solve for P, we get:
P = 100 - (4/5) x 62.5 P = 50
Therefore, the price that maximizes total revenue for the firm is $50.
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