Two aircraft flew at the same speed, the first aircraft was in the air for 4 hours, the second for 6 hours.

Two aircraft flew at the same speed, the first aircraft 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?

To solve this problem, we introduce the conditional variable “X”, through which we denote the speed at which the planes flew.

Then, applying the formula for the speed and based on the data of the problem, we will compose the following equation: X = 1400 / (6 – 4).

Solving this equation, we get X = 1400/2 = 700 km / h.

Therefore, the first plane flew 700 x 4 = 2800 kilometers, the second plane flew 700 x 6 = 4200 kilometers.

Answer: the first plane flew 2,800 kilometers, the second plane flew 4,200 kilometers.