Question

Автобус за 8 часов прошел расстояние 560 км. На обратный путь он затратил 7 часов. На сколько изменилась его скорость на обратном пути.Заранее спасибо!!!

Answer 1

560/8=70
560/7=80
80-70=10 - на 10 км/час скорость стала больше

Answer 2

560:8= 70км/ч скорость автобуса
560:7= 80 км/ч скорость автобуса на обратном пути
80-70= на 10км/ч увеличилась скорость на обратном пути

Answer 3

Calculation of Speed

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

Given: - Time taken for the forward journey = 8 hours - Distance covered on the forward journey = 560 km - Time taken for the return journey = 7 hours

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 Speed

To determine the change in speed, we can subtract the speed of the forward journey from the speed of the return journey:

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

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

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

Please note that these calculations assume a constant speed throughout the journey and do not take into account factors such as traffic or road conditions.

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