Question

8) Туристы ехали на автобусе до города N со скоростью 40 км/ч в течение одного часа. Обратно они возвращались на автомобиле уже со скоростью 60 км/ч. Найдите среднюю скорость движения туристов.

Answer 1

(40 + 60 ) : 2 = 50 км/час - средняя скорость движения туристов

Answer 2

Calculation of Average Speed

To find the average speed of the tourists, we need to calculate the total distance traveled and the total time taken.

The tourists traveled to the city N at a speed of 40 km/h for one hour, and then returned at a speed of 60 km/h.

Let's calculate the average speed step by step:

1. Distance traveled to the city N: 40 km/h * 1 hour = 40 km. 2. Distance traveled back from the city N: 60 km/h * 1 hour = 60 km. 3. Total distance traveled: 40 km + 60 km = 100 km. 4. Total time taken: 1 hour + 1 hour = 2 hours.

Now, we can calculate the average speed using the formula:

Average Speed = Total Distance / Total Time

Average Speed = 100 km / 2 hours = 50 km/h.

Therefore, the average speed of the tourists' journey is 50 km/h.