Which of the following is required in order to apply Linear Programming effectively?

In the north-west corner method of Linear Programming, the empty or open squares are called:

A person comes to a cyber cafe everyday. Sometimes, he has to wait for the cyber cafe to open and at other times, he arrives late. The opening time of the cafe varies from day to day. Study the above table, computed for 8 days, and calculate the average waiting time of that person.

Determine best alternative if a person is adopting the maximax criterion.

The initial cost of a machine is $6000. Study the above given table and calculate after how many years of service should the machine be replaced.

Determine the equipment utilization.

Determine best alternative if a person is adopting the Hurwics criterion.

Find the basic feasible solution using the matrix minimum method.

Use the property of dominance to find out the value of the saddle point.

A discotheque has a single ticket-counter. During rush hours, people arrive at the rate of 50 per hour. The average number of people allowed to enter is 100 per hour. Calculate the average number of people who still have to wait in the queue for their turn.

The demand value according to random numbers is?