Question

Поезд прошел без остановок 250 км со скоростью 75км.ч.Затем он сделал остановку,которая длилась 23мин,и остальное расстояние,равное 756км,двигался со скоростью 84км.ч без остановок.сколько времени затратили пассажиры этого поезда на весь путь?Запишите краткие пояснения к решению задачи и завершите решение.

Answer 1

1) 450:75=6 часов проехал 450 км
2) 756:84=9 ч проехали 756 км
3) 6+9+23 мин= 15ч23(мин) затрат или пассажиры на весь путь
Ответ:15ч23 мин

Answer 2

To solve this problem, we need to calculate the total time taken by the train for the entire journey. Let's break down the problem step by step:

1. The train traveled 250 km without any stops at a speed of 75 km/h. To find the time taken for this part of the journey, we can use the formula:

Time = Distance / Speed

Substituting the values, we get:

Time = 250 km / 75 km/h

Calculating this, we find that the time taken for the first part of the journey is approximately 3.33 hours.

2. The train then made a stop that lasted for 23 minutes. We need to convert this time into hours, so we divide it by 60:

Stop time = 23 minutes / 60

This gives us a stop time of approximately 0.38 hours.

3. After the stop, the train continued its journey for the remaining distance of 756 km at a speed of 84 km/h. Using the same formula as before, we can calculate the time taken for this part:

Time = Distance / Speed

Substituting the values, we get:

Time = 756 km / 84 km/h

Calculating this, we find that the time taken for the second part of the journey is approximately 9 hours.

4. Now, we can calculate the total time taken for the entire journey by adding up the times for each part:

Total time = Time for first part + Stop time + Time for second part

Substituting the values, we get:

Total time = 3.33 hours + 0.38 hours + 9 hours

Calculating this, we find that the total time taken by the passengers for the entire journey is approximately 12.71 hours.

Therefore, the passengers of this train spent approximately 12.71 hours for the entire journey.

Please note that the above calculations are based on the given information and assume constant speeds throughout the journey.