Question

Расстояние от города до села Черёмушки 147 км.В 15 часов из города в село выехал мотоциклист со скоростью 45 км/ч.Через 2 ч из села в город выехал велосипедист со скоростью 12 км/ч.В котором часу они встретились?

Answer 1

Ответ:Удачи!

Пошаговое объяснение:

45 * 2 = 90 (км).

147 - 90 = 57 (км).

Умножаем скорость велосипедиста 12 км/ч на время х, умножаем скорость мотоциклиста 45 км/ч на время х, расстояние которое им нужно проехать 57 км.

45 * х + 12 * х = 57

57 * х = 57

х = 57 : 57

х = 1 (час).

Было 15.00, когда выехал мотоциклист, через 2 часа выехал велосипедист и 1 час они двигались до встречи.

15 + 2 + 1 = 18 - 18,00.

Ответ: 18,00

Answer 2

Calculation of Meeting Time

To calculate the time at which the motorcyclist and the cyclist meet, we need to determine the time it takes for each of them to travel the given distance.

The distance from the city to the village of Cheryomushki is 147 km. The motorcyclist travels at a speed of 45 km/h, and the cyclist travels at a speed of 12 km/h.

Let's calculate the time it takes for the motorcyclist to travel the distance:

Time taken by the motorcyclist = Distance / Speed = 147 km / 45 km/h = 3.27 hours

Similarly, let's calculate the time it takes for the cyclist to travel the distance:

Time taken by the cyclist = Distance / Speed = 147 km / 12 km/h = 12.25 hours

Now, we need to find the time at which they meet. Since the motorcyclist started at 15:00, we can add the time taken by the motorcyclist to the starting time to find the meeting time:

Meeting time = Starting time + Time taken by the motorcyclist = 15:00 + 3.27 hours

To add the time, we need to convert the time taken by the motorcyclist to minutes. Since 0.27 hours is equal to 16.2 minutes, we can round it to 16 minutes.

Therefore, the meeting time is approximately 18:16.

Please note that the above calculation assumes that both the motorcyclist and the cyclist travel continuously without any breaks or interruptions.