Question

из одного пункта одновременно в противоположном направлениях вышли два пешехода.Через три часа расстояние между ними составило 27 км .Найди скороость второго пешехода если скорость первого 4 км в час ЕСЛИ МОЖНО НЕ ПРОСТО ОТВЕТ----А РЕШЕНИЕ ЗАДАЧИ

Answer 1

27:3=9км/ч- скорость удаления пешеходов

9-4=5км/ч- скорость второго

 

 

Answer 2

1) 4*3=12(км) - прошёл 1 пешеход.

2) 27-12=15(км) - прошёл 2 пешеход.

3)15/3=5(км/ч) - скорость 2 пешехода.

Ответ: 5 км/ч .

Answer 3

Problem Statement

Two pedestrians start from the same point in opposite directions. After three hours, the distance between them is 27 km. The speed of the first pedestrian is 4 km/h. Find the speed of the second pedestrian.

Solution

Let's assume the speed of the second pedestrian is x km/h.

After three hours, the first pedestrian would have traveled a distance of 4 km/h * 3 hours = 12 km.

The second pedestrian, traveling in the opposite direction, would have traveled a distance of x km/h * 3 hours = 3x km.

The total distance between them is given as 27 km.

Therefore, we can write the equation: 12 km + 3x km = 27 km.

Simplifying the equation, we have: 3x km = 27 km - 12 km.

Simplifying further, we get: 3x km = 15 km.

Dividing both sides of the equation by 3, we find: x km = 15 km / 3.

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

Answer

The speed of the second pedestrian is 5 km/h.