If 4 pilots share a total expense of $2,400 equally, how much does each pilot pay?

To determine how much each pilot pays when 4 pilots share a total expense of $2,400 equally, you need to divide the total expense by the number of pilots.

Start with the total amount of $2,400 and divide it by 4:

[

\frac{2400}{4} = 600

]

Each pilot pays $600, which comes from the straightforward calculation that distributes the total expense equally among the 4 pilots. This method ensures that everyone contributes the same amount towards the shared expense, making it a fair division.

The choice reflecting this calculation is therefore clearly the correct answer.