Question

Из 2 сел одновременно навстречу друг другу вышли 2 пешехода и встретились через 1,5 ч Расстояние между селами 12,3 км Скорость одного пешехода 4,4 км/ч Найдите скорость другого пешехода

Answer 1

V=S:t
12,3 км:1,5 час=8,2 км/час (скорость сближения или сумма скоростей)
8,2 км/час-4,4 км/час=3,8 км/час
Ответ: скорость другого пешехода 3,8 км/час

Answer 2

Problem Analysis

We are given that two pedestrians start walking towards each other from two different villages. They meet after 1.5 hours, and the distance between the villages is 12.3 km. We need to find the speed of the other pedestrian.

Solution

Let's assume the speed of one pedestrian is x km/h. Since they meet after 1.5 hours, the total distance covered by both pedestrians is equal to the distance between the villages, which is 12.3 km.

The equation for the total distance covered is: Distance = Speed × Time

For the first pedestrian, the distance covered is x × 1.5 km. For the second pedestrian, the distance covered is (4.4 × 1.5) km.

The sum of these distances should be equal to 12.3 km: x × 1.5 + (4.4 × 1.5) = 12.3

Now we can solve this equation to find the value of x, which represents the speed of the other pedestrian.

Let's calculate the value of x.

Calculation

**x × 1.5 + (4.4 × 1.5) =