Question

С двух станций одновременно навстречу друг другу выехали два поезда.Скорость первого 58 км/ч,а второго на 4км/ч больше .Через 4 часа расстояние между поездами было 158км.Какого было расстояние между поездами в начале движения?

Answer 1

58+4=62км/ч -скорость второго 58*4=232км-проехал первый 62*4=248-проехал второй 232+248=480-км проехали за 4 часа 480+158=638-км первоначально

Answer 2

58*4+(58+4)*4+158=638км

Answer 3

Problem Analysis

We have two trains that start simultaneously from two different stations and are moving towards each other. The first train has a speed of 58 km/h, while the second train has a speed that is 4 km/h faster than the first train. After 4 hours, the distance between the trains is 158 km. We need to find the initial distance between the trains.

Solution

Let's assume that the initial distance between the trains is x km.

After 4 hours, the first train will have traveled a distance of 58 km/h * 4 h = 232 km. The second train, which is moving towards the first train, will have traveled a distance of (58 km/h + 4 km/h) * 4 h = 248 km.

The total distance covered by both trains after 4 hours is 232 km + 248 km = 480 km.

Since the distance between the trains after 4 hours is given as 158 km, we can set up the following equation:

x - 480 km + 158 km = 0

Simplifying the equation, we get:

x - 322 km = 0

Adding 322 km to both sides of the equation, we find:

x = 322 km

Therefore, the initial distance between the trains was 322 km.

Conclusion

The initial distance between the two trains was 322 km.