Answer:
The two planes have traveled the <em>same distance.</em>
Step-by-step explanation:
Given that:
Velocity of first plane traveling north = 100 km/h
Time taken by the plane = 2.5 hours
Velocity of second plane traveling north = 62.5 km/h
Time taken by the plane = 4 hours
To find:
Which plane traveled longer distance?
Solution:
First of all, let us have a look at the formula for finding the distance using velocity and time.
Formula is:

Distance traveled by first plane:

Distance traveled by second plane:

Here, we can clearly see that:

Therefore, the two planes have traveled the <em>same distance</em>.