Question

Два поезда вышли одновременно навстречу друг другу. Первый поезд двигались со скоростью 70 км/ч, а вторая - 64 км/ ч. Второй поезд прошёл до встречи 192 км. Какое расстояние до встречи прошёл первый поезд?

Answer 1

1) 192:64=3 часа поезда были в пути                                                                 2) 70*3=210(км) прошел 1 поезд                                                                            Ответ: До встречи 1 поезд прошел 210(км)

Answer 2

192/64=3(ч)V2поездов
70×3=210(км) проехал 1 поезд

Answer 3

Problem Analysis

We have two trains traveling towards each other. The first train is moving at a speed of 70 km/h, and the second train is moving at a speed of 64 km/h. The second train has traveled a distance of 192 km before they meet. We need to find the distance traveled by the first train before the meeting point.

Solution

To find the distance traveled by the first train, we can use the formula:

Distance = Speed x Time

Let's assume the time taken for the trains to meet is 't' hours.

The first train's speed is 70 km/h, so the distance traveled by the first train is 70t km.

The second train's speed is 64 km/h, and it has traveled a distance of 192 km. So, the distance traveled by the second train is 64t km.

Since the total distance traveled by both trains is equal to the sum of their individual distances, we can write the equation:

70t + 64t = 192

Simplifying the equation:

134t = 192

Solving for 't':

t = 192 / 134

Calculating the value of 't':

t ≈ 1.4328 hours

Now, we can substitute the value of 't' back into the equation to find the distance traveled by the first train:

Distance = Speed x Time

Distance = 70 km/h x 1.4328 hours

Calculating the distance:

Distance ≈ 100.296 km

Therefore, the first train traveled approximately 100.296 km before the meeting point.

Answer

The first train traveled approximately 100.296 km before the meeting point.