Question

Из городов А и В, расстояние между которыми 230 км одновременно навстречу друг другу выехали два автомобиля. Скорость одного из них v1 км/ч , скорость другого- v2 км/ч. Через сколько часов они встретятся?

Answer 1

Скорость сближения Vc = V1+V2
Время t = S/V = 230/(V1+V2)

Answer 2

Problem Analysis

We are given that two cars, A and B, start simultaneously from two cities and are traveling towards each other. The distance between the cities is 230 km. The speeds of the two cars are v1 km/h and v2 km/h, respectively. We need to find out how many hours it will take for the cars to meet.

Solution

To solve this problem, we can use the formula:

Time = Distance / Relative Speed

The relative speed of the two cars is the sum of their speeds, as they are traveling towards each other. Let's calculate the time it will take for the cars to meet.

Calculation

The relative speed of the two cars is given by:

Relative Speed = v1 + v2

The time it will take for the cars to meet is given by:

Time = Distance / Relative Speed

Substituting the values, we have:

Time = 230 / (v1 + v2)

Therefore, the cars will meet in 230 / (v1 + v2) hours.

Answer

The cars will meet in 230 / (v1 + v2) hours.

Please let me know if I can help you with anything else.