Question

два пешехода одновременно отправились навстречу друг другу их двух пунктов расстояние между которыми 28км через сколько часов они встретятся если скорость первого 3 5/7 км/ч второго 3 2/7 км/ч​

Answer 1

Problem Analysis

We have two pedestrians who are walking towards each other from two different points. The distance between the two points is 28 km. We are given the speeds of the two pedestrians: the first pedestrian is walking at a speed of 3 5/7 km/h, and the second pedestrian is walking at a speed of 3 2/7 km/h. We need to determine how many hours it will take for them to meet.

Solution

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

Let's calculate the time it will take for the first pedestrian to cover the distance between the two points: - Distance = 28 km - Speed of the first pedestrian = 3 5/7 km/h

Using the formula, we can calculate the time as follows: time = distance / speed = 28 km / (3 5/7 km/h)

Similarly, let's calculate the time it will take for the second pedestrian to cover the distance between the two points: - Distance = 28 km - Speed of the second pedestrian = 3 2/7 km/h

Using the formula, we can calculate the time as follows: time = distance / speed = 28 km / (3 2/7 km/h)

To find the total time it will take for them to meet, we can add the times calculated for each pedestrian.

Calculation

Let's calculate the time it will take for the first pedestrian to cover the distance between the two points: - Distance = 28 km - Speed of the first pedestrian = 3 5/7 km/h

time = distance / speed = 28 km / (3 5/7 km/h)

Let's calculate the time it will take for the second pedestrian to cover the distance between the two points: - Distance = 28 km - Speed of the second pedestrian = 3 2/7 km/h

time = distance / speed = 28 km / (3 2/7 km/h)

To find the total time it will take for them to meet, we can add the times calculated for each pedestrian.

Calculation Results

The time it will take for the first pedestrian to cover the distance between the two points is approximately 7 hours and 30 minutes. The time it will take for the second pedestrian to cover the distance between the two points is approximately 8 hours and 24 minutes.

To find the total time it will take for them to meet, we can add the times calculated for each pedestrian: 7 hours and 30 minutes + 8 hours and 24 minutes = 15 hours and 54 minutes.

Therefore, the two pedestrians will meet after