Question

«От вокзала отошли одновременно в противоположных направлениях грузовой и пассажирский поезда Через 2 часа расстояние между ними было 240 км Скорость пассажирского поезда 70 км в час Какова скорость грузового поезда? Плиззз надо несколько действии не в одно)

Answer 1

70*2=140 км проехал пасажирский
240-140=100 км прроехал грузовой
100/2=50 км/ч скорость грузового

Answer 2

Problem Analysis

We are given that a passenger train and a freight train depart simultaneously from a train station in opposite directions. After 2 hours, the distance between them is 240 km. We are also given that the speed of the passenger train is 70 km/h. We need to find the speed of the freight train.

Solution

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

To find the speed of the freight train, we can use the formula:

Distance = Speed × Time

After 2 hours, the distance covered by the passenger train is:

Distance covered by passenger train = Speed of passenger train × Time = 70 km/h × 2 hours = 140 km

Since the passenger train and the freight train are moving in opposite directions, the total distance between them after 2 hours is the sum of the distances covered by both trains.

Total distance = Distance covered by passenger train + Distance covered by freight train 240 km = 140 km + Distance covered by freight train

Simplifying the equation, we can find the distance covered by the freight train:

Distance covered by freight train = Total distance - Distance covered by passenger train = 240 km - 140 km = 100 km

Now, we can use the formula to find the speed of the freight train:

Speed of freight train = Distance covered by freight train / Time = 100 km / 2 hours = 50 km/h

Therefore, the speed of the freight train is 50 km/h.

Answer

The speed of the freight train is 50 km/h.