Question

Мотоцикл от города до пайка ехал 4 ч со скоростью 60 км/ч,а на обратный путь он затратил 3 ч . На сколько км/ч мотоциклист изменил свою скорость?

Answer 1

Расстояние от города до поселка: S = 4*60 = 240 км.

Скорость мотоциклиста на обратном пути: V = 240:3 = 80 км/ч.

Мотоциклист увеличил скорость на 80-60 = 20 км/ч.

Answer 2

1) 60·4=240  км расстояние от города до пайка
2)240:3=80 км/ч скорость на обратном пути 
3)80-60= на 20 км/ч мотоциклист увеличил скорость на обратном пути

Answer 3

Calculation of Speed Change

To calculate the change in speed of the motorcyclist, we can use the formula:

Change in speed = (Distance traveled / Time taken) - Initial speed

Let's calculate the change in speed step by step:

1. The motorcyclist traveled from the city to the village in 4 hours at a speed of 60 km/h. 2. Therefore, the distance traveled from the city to the village can be calculated as follows:

Distance = Speed × Time = 60 km/h × 4 hours = 240 km

3. On the return journey, the motorcyclist took 3 hours to travel the same distance. 4. Now, we can calculate the change in speed:

Change in speed = (240 km / 3 hours) - 60 km/h

Change in speed = 80 km/h - 60 km/h = 20 km/h

Therefore, the motorcyclist changed their speed by 20 km/h.

Please note that the above calculation assumes a constant speed throughout the journey and does not take into account any other factors that may have affected the motorcyclist's speed.