Question

Помогите!!!!!!!!!!!!!!!!!! Из одного пункта одновременно в противоположные направлениях выехали два всадника. Через 2 часа расстояние между ними стало 52 км. Какова скорость второго всадника если известно, что он проехал в час на 4 км больше чем первый?

Answer 1

Как-то так, скорость второго всадника должна быть 15 км/ч

Answer 2

Problem Analysis

We have two riders who start from the same point and travel in opposite directions. After 2 hours, the distance between them is 52 km. We need to find the speed of the second rider, given that they traveled 4 km more than the first rider in one hour.

Solution

Let's assume the speed of the first rider is x km/h. Since the second rider traveled 4 km more than the first rider in one hour, their speed would be x + 4 km/h.

After 2 hours, the total distance covered by the first rider would be 2x km, and the total distance covered by the second rider would be 2(x + 4) km.

According to the problem, the total distance between the two riders after 2 hours is 52 km. Therefore, we can set up the following equation:

2x + 2(x + 4) = 52

Simplifying the equation:

2x + 2x + 8 = 52

4x + 8 = 52

4x = 52 - 8

4x = 44

x = 44/4

x = 11

Therefore, the speed of the first rider is 11 km/h, and the speed of the second rider is 11 + 4 = 15 km/h.

Answer

The speed of the second rider is 15 km/h.