Question

Из 2 посёлков расстояние между которыми 15 километров одновременно в противоположных направлениях выехали два всадника Скорость одного 12 километров час другой 8 километров час Какое расстояние будет между ними через 2 часа

Answer 1

12+8=20(км/ч)- скорость сближения.
20*2+15= 55(км)- через 2 часа
ответ: 55 километров

Answer 2

Problem Analysis

Two riders start simultaneously from two villages that are 15 kilometers apart in opposite directions. The first rider has a speed of 12 kilometers per hour, while the second rider has a speed of 8 kilometers per hour. We need to calculate the distance between them after 2 hours.

Solution

To find the distance between the two riders after 2 hours, we need to calculate the total distance covered by each rider and then find the difference between their positions.

Let's calculate the distance covered by the first rider after 2 hours: - Speed of the first rider = 12 kilometers per hour - Time traveled by the first rider = 2 hours - Distance covered by the first rider = Speed * Time = 12 km/h * 2 h = 24 kilometers

Now, let's calculate the distance covered by the second rider after 2 hours: - Speed of the second rider = 8 kilometers per hour - Time traveled by the second rider = 2 hours - Distance covered by the second rider = Speed * Time = 8 km/h * 2 h = 16 kilometers

To find the distance between the two riders after 2 hours, we subtract the distance covered by the second rider from the distance covered by the first rider: - Distance between the two riders after 2 hours = Distance covered by the first rider - Distance covered by the second rider = 24 kilometers - 16 kilometers = 8 kilometers

Therefore, the distance between the two riders after 2 hours will be 8 kilometers.

Answer

The distance between the two riders after 2 hours will be 8 kilometers.