Question

Из двух городов,расстояние между которыми 345км,одновременно в противоположных направлениях выехали 2 поезда.Скорость одного 68 км/ча другого на 13 км/ч больше.На каком расстоянии друг от друга окажутся поезда через 6 часов

Answer 1

No komment thank you

Answer 2

Problem Analysis

We have two trains traveling in opposite directions from two cities. The distance between the cities is 345 km. The first train is traveling at a speed of 68 km/h, while the second train is traveling at a speed 13 km/h faster than the first train. We need to determine the distance between the trains after 6 hours.

Solution

To find the distance between the trains after 6 hours, we need to calculate the total distance covered by both trains in 6 hours.

Let's calculate the distance covered by the first train in 6 hours: Distance covered by the first train = Speed of the first train * Time Distance covered by the first train = 68 km/h * 6 hours

Now, let's calculate the distance covered by the second train in 6 hours: Speed of the second train = Speed of the first train + 13 km/h Distance covered by the second train = Speed of the second train * Time Distance covered by the second train = (68 km/h + 13 km/h) * 6 hours

Finally, we can calculate the distance between the trains after 6 hours by subtracting the distance covered by the first train from the total distance between the cities: Distance between the trains after 6 hours = Total distance between the cities - Distance covered by the first train

Let's calculate the distances:

Distance covered by the first train = 68 km/h * 6 hours = 408 km Distance covered by the second train = (68 km/h + 13 km/h) * 6 hours = 486 km Distance between the trains after 6 hours = 345 km - 408 km = -63 km

The trains will be 63 km apart in the opposite direction after 6 hours.

Please note that the negative sign indicates that the trains are in opposite directions.

Answer

The trains will be 63 km apart in the opposite direction after 6 hours.