Question

Два поезда выехали одновременно навстречу друг другу со станций находящихся на расстоянии 660 километров один поезд движется со скоростью 40 километров час другой 70 километров в час через сколько часов поезда встретятся. На каком расстоянии от каждой станции отправления произойдет встреча?

Answer 1

1) 40+70=110(км/ч) - скорость сближения
2) 660:110=6(ч) - время 
3) 40*6=240(км) - расстояние проехал 1 поезд
4) 70*6=420(км) - расстояние проехал 2 поезд
Ответ : 240км и 420 км.

Answer 2

Problem Analysis

We are given that two trains start simultaneously from stations that are 660 kilometers apart. One train is traveling at a speed of 40 kilometers per hour, while the other train is traveling at a speed of 70 kilometers per hour. We need to determine how many hours it will take for the trains to meet and at what distance from each station the meeting will occur.

Solution

To solve this problem, we can use the formula: time = distance / speed.

Let's calculate the time it will take for the trains to meet. The distance between the stations is 660 kilometers, and the combined speed of the two trains is 40 + 70 = 110 kilometers per hour. Therefore, the time it will take for the trains to meet is:

time = distance / speed = 660 / 110 = 6 hours.

So, the trains will meet after 6 hours.

To find the distance from each station where the meeting will occur, we can multiply the speed of each train by the time it takes for them to meet.

For the first train: distance = speed * time = 40 * 6 = 240 kilometers.

For the second train: distance = speed * time = 70 * 6 = 420 kilometers.

Therefore, the meeting point will be 240 kilometers from the first station and 420 kilometers from the second station.

Answer

The trains will meet after 6 hours. The meeting point will be 240 kilometers from the first station and 420 kilometers from the second station.