Question

Два пешехода вышли одновременно навстречу друг другу из двух сел, расстояние между которыми 27 км. Скорость 1 пешехода 5 км/ч, скорость другого 4 км/ч. Через сколько часов они встретятся?

Answer 1

5+4=9 км/ч их скорость
27:9= через 3часа

Answer 2

5+4=9км/час  
27/9=3 час.

Answer 3

Problem Analysis

We have two pedestrians walking towards each other from two different villages. The distance between the villages is 27 km. The first pedestrian walks at a speed of 5 km/h, while the second pedestrian walks at a speed of 4 km/h. We need to determine how many hours it will take for them to meet.

Solution

To find the time it takes for the pedestrians to meet, we can use the formula:

Time = Distance / Relative Speed

The relative speed is the sum of the speeds of the two pedestrians, as they are walking towards each other.

Let's calculate the time it takes for the pedestrians to meet.

Calculation

The relative speed of the pedestrians is 5 km/h + 4 km/h = 9 km/h.

Using the formula, we can calculate the time it takes for them to meet:

Time = Distance / Relative Speed

Time = 27 km / 9 km/h

Time = 3 hours

Therefore, it will take the pedestrians 3 hours to meet.

Answer

The two pedestrians will meet after 3 hours.