Question

Решить задачу:Расстояние между двумя городами,равно 440 км,поезд прошел за 8 часов.Первые 4 ч он ехал со скоростью 50 км/ч.С какой скоростью поезд прошел остаток пути?

Answer 1

1. 50*4=200 км - проехал поезд за 4 часа.
2. 440-200=240 км. - осталось проехать поезду.
3. 8-4=4 ч. - время оставшееся на вторую часть пути.
4. 240:4=60 км/ч - скорость с которой поезд прошел оставшуюся часть пути.

Answer 2

Problem Analysis

We are given that the distance between two cities is 440 km and a train traveled this distance in 8 hours. We also know that during the first 4 hours, the train traveled at a speed of 50 km/h. We need to find the speed at which the train traveled the remaining distance.

Solution

To find the speed at which the train traveled the remaining distance, we can use the formula:

Speed = Distance / Time

Let's calculate the remaining distance traveled by the train:

Remaining Distance = Total Distance - Distance Traveled in the First 4 Hours

Remaining Distance = 440 km - (50 km/h * 4 h)

Remaining Distance = 440 km - 200 km

Remaining Distance = 240 km

Now, we can calculate the speed at which the train traveled the remaining distance:

Speed = Remaining Distance / Remaining Time

Speed = 240 km / (8 h - 4 h)

Speed = 240 km / 4 h

Speed = 60 km/h

Therefore, the train traveled the remaining distance at a speed of 60 km/h.

Answer

The train traveled the remaining distance at a speed of 60 km/h.