Question

Автобус ехал 8 ч прошёл расстояние 560км. На обратный путь он затратил 7 ч . На сколько изменилась скорость автобуса на обратной пути ?

Answer 1

560:8=70 Км/ч.
560:7=80 Км/ч.
80-70=10 Км/ч.

Answer 2

Calculation of the Bus Speed

To determine the change in the speed of the bus on the return trip, we need to calculate the speed of the bus for both the forward and return journeys.

Given: - The bus traveled a distance of 560 km in 8 hours on the forward journey. - The bus took 7 hours for the return journey.

To calculate the speed, we can use the formula:

Speed = Distance / Time

Let's calculate the speed for the forward journey first:

Forward Journey: - Distance: 560 km - Time: 8 hours

Speed = 560 km / 8 hours = 70 km/h Now, let's calculate the speed for the return journey:

Return Journey: - Distance: 560 km - Time: 7 hours

Speed = 560 km / 7 hours = 80 km/h

Change in Bus Speed

To determine the change in the speed of the bus on the return journey, we can calculate the difference between the speed of the forward journey and the speed of the return journey.

Change in Speed = Speed of Return Journey - Speed of Forward Journey

Change in Speed = 80 km/h - 70 km/h = 10 km/h

Therefore, the speed of the bus increased by 10 km/h on the return journey compared to the forward journey.