The two planes flew at the same speed. The first plane was in the air for 4 hours

The two planes flew at the same speed. The first plane was in the air for 4 hours, the second for 6 hours. The first plane flew 1400 km less than the second. How far each plane flew?

The solution of the problem:
1. Find how many more hours the second plane was in the air than the first plane.
6-4 = 2 hours
2. In the second step, we find out how many kilometers per hour both planes flew.
1400/2 = 700 kilometers
3. Let’s determine what distance the first plane flew.
4 * 700 = 2800 kilometers
4. Determine how many kilometers the second plane flew.
6 * 700 = 4200 kilometers
Answer: The first plane flew two thousand eight hundred kilometers, and the second plane flew four thousand two hundred kilometers.