Question

Поезд должен проехать 1200 км за 16 ч. Оказалось, что первые 35% пути поезд проехал за 6 ч. С какой скоростью ему надо ехать дальше, чтобы прибыть в пункт назначения по расписанию?

Answer 1

780:10=78(км/ч) а не 75

Answer 2

1) 35% = 0,35
1200 х 0,35 = 420 (км) - проехал поезд за 6 часов.
2) 1200 - 420 = 780 (км) - нужно еще проехать.
3) 16 - 6 = 10 (ч) - потратил поезд.
4) 780 : 10 = 78 (км/ч) - с такой скоростью поезду нужно ехать дальше, чтобы прибыть в пункт назначения по расписанию.
Ответ: 78 км/ч.

Answer 3

Problem Analysis

We are given that a train needs to travel a total distance of 1200 km in 16 hours. However, we also know that the train has already traveled the first 35% of the distance in 6 hours. We need to determine the speed at which the train must continue to travel in order to arrive at its destination on schedule.

Calculation

To find the remaining distance that the train needs to travel, we can subtract the distance already traveled from the total distance: Remaining distance = Total distance - Distance already traveled

The distance already traveled can be calculated by multiplying the total distance by the percentage traveled: Distance already traveled = Total distance * Percentage traveled

Substituting the given values, we have: Distance already traveled = 1200 km * 35% = 420 km

Therefore, the remaining distance is: Remaining distance = 1200 km - 420 km = 780 km

To find the speed at which the train must continue to travel, we can divide the remaining distance by the remaining time: Speed = Remaining distance / Remaining time

The remaining time can be calculated by subtracting the time already spent from the total time: Remaining time = Total time - Time already spent

Substituting the given values, we have: Remaining time = 16 hours - 6 hours = 10 hours

Therefore, the speed at which the train must continue to travel is: Speed = 780 km / 10 hours = 78 km/h.

Answer

The train must continue to travel at a speed of 78 km/h in order to arrive at its destination on schedule.

Please let me know if there is anything else I can help you with.