Question

Два поезда выехали одновременно в одном направлении Из двух городов и через 3 часа первый поезд догнал второй скорости поездов 95 км в час и 80 км в час Чему равно расстояние между городами

Answer 1

1)95*3=285(км)-за 3 ч 1 поезд.

2)80*3=240(км)-за 3 ч 2 поезд.

3)285-240=45(км)-расстояние между городами.

             Ответ:45 км расстояние между городами. все

Answer 2

Problem Analysis

We are given that two trains start simultaneously from two different cities and after 3 hours, the first train catches up to the second train. The speeds of the trains are given as 95 km/h and 80 km/h. We need to find the distance between the two cities.

Solution

Let's assume that the distance between the two cities is D km.

We know that the first train catches up to the second train after 3 hours. This means that in 3 hours, the first train has covered a distance equal to the distance between the two trains.

The speed of the first train is 95 km/h, so in 3 hours, it covers a distance of 3 * 95 = 285 km.

Similarly, the speed of the second train is 80 km/h, so in 3 hours, it covers a distance of 3 * 80 = 240 km.

Since the first train catches up to the second train, the distance covered by the first train is equal to the distance covered by the second train. Therefore, we can set up the following equation:

285 km = 240 km + D km

Simplifying the equation, we get:

D km = 285 km - 240 km D km = 45 km

Therefore, the distance between the two cities is 45 km.

Answer

The distance between the two cities is 45 km.