Question

поезд прошёл без остановок 420 км со скростью 70 км/ч, затем он сделал остановку на 14 мин,а остальные 300 км прошёл со скоростью 75 км/ч. сколько времени было затрачено на весь путь?

Answer 1

420÷70=6 ч. 300÷75=4ч. 6ч.+4ч.=10ч.+14минут=10 часов и 14 минут извеняюсь перепутала

Answer 2

Calculation of 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.

1. First Segment: The train traveled 420 km without any stops at a speed of 70 km/h. - To calculate the time taken for this segment, we can use the formula: time = distance / speed. - Therefore, the time taken for the first segment is: 420 km / 70 km/h = 6 hours.

2. Second Segment: The train made a stop for 14 minutes and then traveled the remaining 300 km at a speed of 75 km/h. - To calculate the time taken for this segment, we need to add the time taken for the stop and the time taken for the distance traveled. - The time taken for the stop is 14 minutes. - The time taken for the distance traveled is: 300 km / 75 km/h = 4 hours. - Therefore, the total time taken for the second segment is: 14 minutes + 4 hours = 4 hours and 14 minutes.

3. Total Time Taken: To calculate the total time taken for the entire journey, we need to add the time taken for both segments. - The time taken for the first segment is 6 hours. - The time taken for the second segment is 4 hours and 14 minutes. - Therefore, the total time taken for the entire journey is: 6 hours + 4 hours and 14 minutes.

Answer

The total time taken for the entire journey is 10 hours and 14 minutes.

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