The demand function equation faced by PTCL for its computers is given by: P = 50,000 – 4Q i. Write the marginal revenue equation ii. At what price and quantity marginal revenue will be zero? iii. At...

The demand function equation faced by PTCL for its computers is given by:
P = 50,000 – 4Q
i. Write the marginal revenue equation
ii. At what price and quantity marginal revenue will be zero?
iii. At what price and quantity will total revenue be maximized?