Question

Решите задачу)) Два мотоциклиста выехали одновременно навстречу друг другу из двух городов.Первый проехал до встречи 240 километров со скоростью 80 км/ч .Скорость второго -75км/ч.Чему равно расстояние между городами?

Answer 1

1) 240/80=3ч - время движения
2) 75*3=225 км - проехал второй мотоциклист до встречи
3) 240+225=465 км - расстояние между городами

Answer 2

Problem Analysis

We have two motorcyclists traveling towards each other from two different cities. The first motorcyclist travels at a speed of 80 km/h and covers a distance of 240 km before they meet. The second motorcyclist travels at a speed of 75 km/h. We need to find the distance between the two cities.

Solution

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

Distance = Speed × Time

Let's calculate the time it takes for the two motorcyclists to meet.

The first motorcyclist travels at a speed of 80 km/h and covers a distance of 240 km. Using the formula, we can calculate the time taken by the first motorcyclist:

Time taken by the first motorcyclist = Distance / Speed = 240 km / 80 km/h = 3 hours.

The second motorcyclist travels at a speed of 75 km/h. Since they are traveling towards each other, their relative speed is the sum of their individual speeds:

Relative speed = Speed of the first motorcyclist + Speed of the second motorcyclist = 80 km/h + 75 km/h = 155 km/h.

Now, we can calculate the distance between the two cities using the formula:

Distance = Speed × Time = Relative speed × Time taken by the first motorcyclist = 155 km/h × 3 hours = 465 km.

Therefore, the distance between the two cities is 465 kilometers.

Answer

The distance between the two cities is 465 kilometers.