Question

Два самолёта вылетели одновременно из двух городов навстречу друг другу и встретились через 3 часа . Скорость первого 320км/ч,второго-450км/ч .Каково расстояние между городами?

Answer 1

1) 320+450=770 (км/ч) - общая скорость.
2) 770*3=2310 (км) - расстояние между городами.
Ответ: 2310 км

Answer 2

Calculation of Distance between Cities

To calculate the distance between the two cities, we can use the formula:

Distance = Speed x Time

Given that the first plane has a speed of 320 km/h and the second plane has a speed of 450 km/h, and they meet after 3 hours, we can calculate the distance between the cities as follows:

For the first plane: Distance1 = Speed1 x Time = 320 km/h x 3 hours = 960 km.

For the second plane: Distance2 = Speed2 x Time = 450 km/h x 3 hours = 1350 km.

Therefore, the distance between the two cities is the sum of the distances covered by each plane: Total Distance = Distance1 + Distance2 = 960 km + 1350 km = 2310 km.

So, the distance between the two cities is 2310 km.