Question

Велосипедист проехал со скоростью 25 км/час 2 часа, а потом за 1 час еще 19 км.. Обчислите среднюю скорость велосипедиста на всём пути.

Answer 1

Ср. скорость V= весь путь/ всё время=(25*2+19*1)/2+1=69км/3ч=23км/ч

Answer 2

Calculation of Average Speed

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

The cyclist traveled at a speed of 25 km/h for 2 hours, covering a distance of 25 km/h * 2 h = 50 km

Then, the cyclist traveled an additional 19 km in 1 hour

Therefore, the total distance traveled is 50 km + 19 km = 69 km.

The total time taken is 2 hours + 1 hour = 3 hours.

To find the average speed, we divide the total distance by the total time:

Average speed = Total distance / Total time = 69 km / 3 hours = 23 km/h.

So, the average speed of the cyclist for the entire journey is 23 km/h.

Please let me know if there's anything else I can help you with!