Question

Поезд проходит расстояние между двумя станциями за 4,2 часа, двигаясь со скоростью 54 км/ч. За какое время он пройдёт это расстояние, если будет двигаться со скоростью 63 км/ч?

Answer 1

Ответ: 3,6
4,2*54=226,8
226,8/63=3,6

Answer 2

Calculation of Time to Travel a Distance

To calculate the time it takes for a train to travel a certain distance, we can use the formula:

Time = Distance / Speed

In this case, the distance between the two stations is given as 54 km/h and 63 km/h. Let's calculate the time it takes for the train to travel this distance at each speed.

1. When the train is moving at a speed of 54 km/h: - Distance: 54 km - Speed: 54 km/h - Time = Distance / Speed = 54 km / 54 km/h = 1 hour

2. When the train is moving at a speed of 63 km/h: - Distance: 54 km - Speed: 63 km/h - Time = Distance / Speed = 54 km / 63 km/h ≈ 0.857 hours

Therefore, when the train is moving at a speed of 54 km/h, it takes 1 hour to travel the distance between the two stations. When the train is moving at a speed of 63 km/h, it takes approximately 0.857 hours (or about 51.4 minutes) to travel the same distance.

Please note that these calculations assume a constant speed throughout the journey and do not take into account factors such as acceleration, deceleration, or stops along the way.