Question

Двапоездадвигалисьс одинаковой скоростью.Первый поездпройшов1344км,авторой-1680км.Второйпоезд былв путичасахбольше.С какой скоростьюдвигалисьпоезда?

Answer 1

1) 1680 - 1344 = 336(км) - на столько второй поезд проехал больше.
2) 336 : 4 = 84(км/ч) скорость и 1-ого и 2-ого поезда.
Ответ: 84км/ч - скорость поездов.

Answer 2

Problem Analysis

We have two trains that are moving at the same speed. The first train travels a distance of 1344 km, while the second train travels a distance of 1680 km. The second train takes one hour longer to reach its destination. We need to find the speed at which the trains are moving.

Solution

Let's assume the speed of both trains is x km/h.

The time taken by the first train to travel a distance of 1344 km can be calculated using the formula:

Time = Distance / Speed

For the first train: Time taken = 1344 km / x km/h

Similarly, the time taken by the second train to travel a distance of 1680 km can be calculated using the same formula:

Time taken = 1680 km / x km/h

According to the problem, the second train takes one hour longer to reach its destination. So, we can set up the following equation:

Time taken by the second train = Time taken by the first train + 1 hour

1680 km / x km/h = 1344 km / x km/h + 1 hour

To solve this equation, we can cross-multiply:

1680 km = 1344 km + x km/h

Rearranging the equation, we get:

x km/h = (1680 km - 1344 km) / 1 hour

Simplifying the equation, we find:

x km/h = 336 km/h

Therefore, the speed of both trains is 336 km/h.

Answer

The trains were moving at a speed of 336 km/h.