Question

Из двух городов расстояние между которыми 520 км одновременно вышли навстречу друг другу два поезда и встретились через 4 часа Один поезд шел со средней скоростью 60км/ч С какой средней скоростью шел другой поезд

Answer 1

60*4=240 км - расстояние, которое прошёл первый поезд. 520-240=280 км - расстояние , которое прошёл второй поезд. 280:4= 70 км/ч - скорость второго поезда.

Answer 2

Problem Analysis

We have two trains that start simultaneously from two cities and meet each other after 4 hours. One train is traveling at a constant speed of 60 km/h. We need to find the average speed of the other train.

Solution

Let's assume the average speed of the other train is x km/h.

To find the average speed, we can use the formula:

Average Speed = Total Distance / Total Time

The total distance covered by both trains is 520 km. Since they meet after 4 hours, the total time is 4 hours.

Substituting the values into the formula, we get:

Average Speed = 520 km / 4 hours

Simplifying the equation, we find:

Average Speed = 130 km/h

Therefore, the average speed of the other train is 130 km/h.

Answer

The average speed of the other train is 130 km/h.