Question

Помогите решить. От станции в направлении поселка, расстояние до которого 24 км,вышел пешеход со скоростью 4 км/ ч.Через 2 ч навстречу ему из поселка выехал велосипедист со скоростью 12 км/ ч.Через сколько часов после своего выхода пешеход встретится с велосипедистом?

Answer 1

4*2=8км прошел пешеход за 2ч
24-8=16км они двигались вместе
12+4=16км/ч-скорость сближения
16:16=1ч ехал велосипедист
1+2=3ч шел пешеход

Answer 2

Problem Analysis

We are given that a pedestrian starts walking from a station towards a village at a speed of 4 km/h. After 2 hours, a cyclist starts riding from the village towards the pedestrian at a speed of 12 km/h. We need to determine how many hours it will take for the pedestrian and the cyclist to meet.

Solution

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

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

The distance the pedestrian travels in 2 hours is: distance = speed × time = 4 km/h × 2 h = 8 km.

Now, let's calculate the time it takes for the cyclist to meet the pedestrian.

The distance the cyclist travels is the same as the distance the pedestrian travels in 2 hours, which is 8 km.

Using the formula time = distance / speed, we can calculate the time it takes for the cyclist to meet the pedestrian: time = distance / speed = 8 km / 12 km/h = 2/3 hours.

Therefore, the pedestrian and the cyclist will meet after 2/3 hours.

Answer

The pedestrian and the cyclist will meet after 2/3 hours.