Question

Из почтового отделения в деревни,которые находятся в противополжных направлениях,одновременно вышли два почтальона.Один шёл со скоростью 5км\ч а другой 3км\ч.Через сколько часов расстояние между ними будет равно 24м?Помогите пожалуйста?

Answer 1

5+3=8 (км/ч) - скорость удаления почтальонов
24:8=3 (ч.)
ответ: через 3 часа

Answer 2

Problem Analysis

We have two mail carriers who start simultaneously from opposite directions. One is moving at a speed of 5 km/h, and the other is moving at a speed of 3 km/h. We need to find out how many hours it will take for the distance between them to be 24 meters.

Solution

Let's assume that the mail carrier moving at 5 km/h starts from point A, and the mail carrier moving at 3 km/h starts from point B. The distance between them is decreasing at a rate of 5 km/h + 3 km/h = 8 km/h.

To convert the speed from km/h to m/h, we multiply by 1000: 8 km/h * 1000 = 8000 m/h.

We need to find the time it takes for the distance between them to be 24 meters. We can use the formula:

time = distance / speed

Substituting the values, we get:

time = 24 m / 8000 m/h

Simplifying, we find:

time = 0.003 hours

Therefore, it will take approximately 0.003 hours for the distance between the two mail carriers to be 24 meters.

Answer

It will take approximately 0.003 hours for the distance between the two mail carriers to be 24 meters.