Question

Одновременно из двух городов расстояние между которыми 345 км навстречу друг другу вышли два поезда. скорость одного из них 60 км/час. через 3 часа поезда встретились.чему равна скорость другого поезда? Заранее спасибо!! если можно то по действиям)

Answer 1

1) 60*3=180(км) проехал всего 1 поезд 2) 345-180=165 (км)  проехал всего 2 поезд 3) 165/3=55 (км/ч) проехал 2 поезд

Answer 2

Problem Analysis

We have two trains that are traveling towards each other from two different cities. The distance between the cities is 345 km. One train is traveling at a speed of 60 km/h. After 3 hours, the trains meet each other. We need to find the speed of the other train.

Solution

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

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

Distance = Speed × Time

The first train travels for 3 hours at a speed of 60 km/h, so the distance it covers is:

Distance covered by the first train = Speed of the first train × Time = 60 km/h × 3 hours = 180 km

Since the total distance between the two cities is 345 km and the first train has covered 180 km, the remaining distance covered by the second train is:

Distance covered by the second train = Total distance - Distance covered by the first train = 345 km - 180 km = 165 km

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

Speed of the second train = Distance covered by the second train ÷ Time = 165 km ÷ 3 hours = 55 km/h

Therefore, the speed of the second train is 55 km/h.

Answer

The speed of the second train is 55 km/h.