Question

Решите пожалуйста!!!Из города и посёлка вышли навстречу друг другу пешеход и велосипедист.Встретились они через 3 часа.Вычисли расстояние между населенными пунктами,если скорость пешехода 4 км/ч,а скорость велосипедиста 12 км/ч.

Answer 1

Их общая скорость 4+12=16 км/ч

16*3=48 км

Answer 2

Problem Analysis

We are given that a pedestrian and a cyclist start walking towards each other from a city and a village, respectively. They meet after 3 hours. We need to calculate the distance between the two settlements given that the pedestrian's speed is 4 km/h and the cyclist's speed is 12 km/h.

Solution

To find the distance between the two settlements, we can use the formula:

Distance = Speed × Time

Let's calculate the distance using this formula.

Calculation

The pedestrian's speed is 4 km/h, and they walk for 3 hours. Therefore, the distance covered by the pedestrian is:

Distance_pedestrian = Speed_pedestrian × Time = 4 km/h × 3 h = 12 km

Similarly, the cyclist's speed is 12 km/h, and they cycle for 3 hours. Therefore, the distance covered by the cyclist is:

Distance_cyclist = Speed_cyclist × Time = 12 km/h × 3 h = 36 km

Since the pedestrian and the cyclist are walking towards each other, the total distance between the two settlements is the sum of the distances covered by each of them:

Total_distance = Distance_pedestrian + Distance_cyclist = 12 km + 36 km = 48 km

Therefore, the distance between the city and the village is 48 km.

Answer

The distance between the city and the village is 48 km.