Final answer:
The average cost per passenger for rush-hour flights is $500.
Step-by-step explanation:
To find the average cost per passenger for each flight, we need to calculate the total cost for each flight and divide it by the number of passengers.
For the first and last flights, the cost is $100,000 and there are 200 passengers, so the average cost per passenger is $100,000 / 200 = $500.
For the second and third flights, the cost is also $100,000, but they are only half full, so there are 200 / 2 = 100 passengers. Therefore, the average cost per passenger is $100,000 / 100 = $1,000.
So the average cost per passenger for the rush-hour flights is $500.