Question

Электричка из Ростова на Дону идёт 75 минут. Когда электричка отправилась из Ростова на Дону, если в Краснодар она прибыла в 12 часов 50 минут. Срочно!!!​

Answer 1

12ч 50мин=60мин*12+50=770мин
770мин-75мин=695мин
695мин=11ч 35мин
Ответ: в 11ч 35мин.

Answer 2

Calculation of Departure Time from Rostov-on-Don

To calculate the departure time of the train from Rostov-on-Don, we need to subtract the travel time of 75 minutes from the arrival time in Krasnodar, which is 12:50.

Let's perform the calculation:

Arrival time in Krasnodar: 12:50 Travel time: 75 minutes

To find the departure time, we subtract the travel time from the arrival time:

12:50 - 75 minutes = 11:35

Therefore, the train departed from Rostov-on-Don at 11:35.

Note: The calculation assumes that the train journey took exactly 75 minutes and there were no delays or other factors that could affect the travel time.