Question

Поезд прошёл без остановок420км со скоростью 70км/ч, затем он сделал остановку на 14мин, а остальные 300км прошёл со скоростью 75 км/ч.Сколько времени было затрачено на весь путь?

Answer 1

1)420:70=6 (ч.) - За это время поезд проехал 420 км.
2)300:75=4 (ч.) - За это время поезд проехал 300 км.
Переводим часы в минуты:
3)6+4x60=600 (мин.) - Занял весь путь без остановки.
4)600+14=614 (мин.) - Времени было затрачено на весь путь.

Answer 2

(420:70)+14+(300:75)=6+14+4=24(ч)-было затрачено.
Ответ:24 часа было затрачено.

Answer 3

Calculation of the Total Time Taken

To calculate the total time taken for the entire journey, we need to consider the time taken for each segment of the journey separately and then add them together.

1. Time taken for the first segment: - Distance: 420 km - Speed: 70 km/h - Time taken = Distance / Speed = 420 km / 70 km/h = 6 hours.

2. Time taken for the second segment: - Distance: 300 km - Speed: 75 km/h - Time taken = Distance / Speed = 300 km / 75 km/h = 4 hours.

3. Time taken for the stop: - Duration of the stop: 14 minutes - To convert minutes to hours, we divide by 60: 14 minutes / 60 = 0.2333 hours.

Now, we can calculate the total time taken for the entire journey by adding the time taken for each segment and the time taken for the stop:

Total time taken = Time taken for the first segment + Time taken for the stop + Time taken for the second segment = 6 hours + 0.2333 hours + 4 hours = 10.2333 hours

Therefore, the total time taken for the entire journey is approximately 10.2333 hours.

Please note that the above calculation assumes that the train maintains a constant speed throughout each segment and that there are no other factors affecting the journey time.