Question

Из двух поселков росстояние между которыми равно 24 км. Одновременнов одном направлении отправились пешеход и велосипедист . Скорость пешехода равна 4 км/ч а велосипедиста 16км/ч . Через сколько часов велосипедист следуя за пешеходом догонит его

Answer 1

1) найдём скорость сближения: 16-4=12(км/ч) 2) найдём время: 24:12=2(ч). Ответ: через 2 часа.

Answer 2

Problem Analysis

To solve this problem, we need to determine the time it takes for the cyclist to catch up with the pedestrian. The distance between the two is 24 km, and the pedestrian's speed is 4 km/h, while the cyclist's speed is 16 km/h.

Solution

To find the time it takes for the cyclist to catch up with the pedestrian, we can use the formula: time = distance / relative speed

The relative speed is the difference between the speeds of the cyclist and the pedestrian.

Calculation

Using the given values: - Distance = 24 km - Pedestrian's speed = 4 km/h - Cyclist's speed = 16 km/h

The relative speed is the difference between the cyclist's and pedestrian's speeds: Relative speed = 16 km/h - 4 km/h = 12 km/h

Now, we can calculate the time it takes for the cyclist to catch up with the pedestrian: time = distance / relative speed = 24 km / 12 km/h = 2 hours

Answer

Therefore, the cyclist will catch up with the pedestrian in 2 hours.

I hope this helps! If you have further questions, feel free to ask.