Question

Поезд отправился со станции в 18 ч 47 мин. До первой остановки он прошёл 120 км со скоростью 80 км/ч. Во сколько поезд остановился? Решите пожалуйста! 4 класс

Answer 1

Расстояние 120 км
 пошёл за 120:80=1,5 час
 18ч 47мин+1 ч 30мин = 20ч 17 мин;(остановился).
ответ: 20ч 17 мин
или попроще
120:80=1,5. 18 ч 47 мин+1ч 30 мин=20ч17мин

Answer 2

Problem Analysis

We are given the following information: - The train departed from the station at 18:47. - The train traveled 120 km at a speed of 80 km/h.

We need to determine at what time the train stopped.

Solution

To find the time the train stopped, we need to calculate the time it took for the train to travel 120 km at a speed of 80 km/h and add that time to the departure time.

Let's calculate the time it took for the train to travel 120 km at a speed of 80 km/h:

Distance = Speed × Time

120 km = 80 km/h × Time

Time = Distance / Speed

Time = 120 km / 80 km/h

Time = 1.5 hours

Now, let's add this time to the departure time of 18:47:

18:47 + 1.5 hours

To add 1.5 hours to the time, we convert it to minutes:

1.5 hours × 60 minutes/hour = 90 minutes

18:47 + 90 minutes

To add minutes to the time, we need to carry over any excess minutes to the hours:

18:47 + 90 minutes = 19:37

Therefore, the train stopped at 19:37.

Answer

The train stopped at 19:37.