n airline company in India uses A$320$ aircraft to fly passengers from

New Delhi to Mumbai. Though the maximum seating capacity of the

aircraft is $180,$ the airline observes that on average it flies only $130$

passengers per flight. The regular fare between the two cities is Rs$.$

$15,000.$ From the market survey, the company knows that for every Rs$.$

$300$ reduction in fare, it would attract an additional four passengers.

The company would like to find a fare policy that would maximize

its revenue. Formulate this as an optimization problem in the format

above. Identity whether this is a nonlinear programming problem,

linear programming problem, or quadratic programming problem