Question

два поезда расстояние между которыми 685км вышли одновременно навстречу друг другу. Через какое время равсстояние между поездами будет равно 95км если их скорости55км ч и 45 км ч

Answer 1

55+45=100(км/ч)-скорость сближения
685-95=590(км)-проедут
590/100=5,9(ч.)-расстояние между поездами будет 95км

Answer 2

1. 55+45=100(км/ч)
2. 685-95=590(км)
3. 590/100=5,9

Answer 3

Problem Analysis

We have two trains that are initially 685 km apart and are moving towards each other. The speeds of the trains are 55 km/h and 45 km/h. We need to find out how long it will take for the distance between the trains to be 95 km.

Solution

To solve this problem, we can use the formula: time = distance / speed.

Let's calculate the time it takes for the trains to meet initially: - Train 1 speed = 55 km/h - Train 2 speed = 45 km/h - Initial distance between the trains = 685 km

The relative speed of the trains when moving towards each other is the sum of their individual speeds: - Relative speed = 55 km/h + 45 km/h = 100 km/h

Using the formula, we can calculate the time it takes for the trains to meet initially: - Initial time = 685 km / 100 km/h = 6.85 hours

Now, let's calculate the time it takes for the distance between the trains to be 95 km: - Distance between the trains = 95 km

Using the formula, we can calculate the time it takes for the distance between the trains to be 95 km: - Time = 95 km / 100 km/h = 0.95 hours

Therefore, it will take 0.95 hours for the distance between the trains to be 95 km.

Answer

The time it takes for the distance between the two trains to be 95 km is approximately 0.95 hours.