Question

Из двух сёл растояние между которыми 36 км , Одновременно навстречу друг другу вышли два пешехода скорость первого 4 километров час скорость второго 5 километров в час. Какое расстояние будет между ними через 3 часа? Определите скорость движения пешеходов

Answer 1

4+5=9км/ч общая скорость пешеходов.
9*3=27 км - расстояние между ними через 3 часа.

Answer 2

U сближения = 5+4=9км/ч
S= 9*3=27км
Расстояние = 36-27=9км

Answer 3

Problem Analysis

We have two pedestrians walking towards each other from two different villages. The distance between the villages is 36 km. The first pedestrian has a speed of 4 km/h, and the second pedestrian has a speed of 5 km/h. We need to find the distance between them after 3 hours and determine their speeds.

Solution

To find the distance between the pedestrians after 3 hours, we can calculate the total distance covered by both pedestrians and subtract it from the initial distance between the villages.

The first pedestrian's speed is 4 km/h, so in 3 hours, they will cover a distance of 4 km/h * 3 h = 12 km.

The second pedestrian's speed is 5 km/h, so in 3 hours, they will cover a distance of 5 km/h * 3 h = 15 km.

The total distance covered by both pedestrians is 12 km + 15 km = 27 km.

To find the distance between the pedestrians after 3 hours, we subtract the total distance covered from the initial distance between the villages:

Distance between pedestrians after 3 hours = Initial distance - Total distance covered = 36 km - 27 km = 9 km

Therefore, the distance between the pedestrians after 3 hours will be 9 km.

To determine the speeds of the pedestrians, we already know that the first pedestrian's speed is 4 km/h and the second pedestrian's speed is 5 km/h.

Therefore, the speed of the first pedestrian is 4 km/h and the speed of the second pedestrian is 5 km/h.

Answer

The distance between the two pedestrians after 3 hours will be 9 km. The first pedestrian has a speed of 4 km/h and the second pedestrian has a speed of 5 km/h.