Question

Поезд за первый час прошел 76км,за второй час -90км,а за третий час -80км.Найдите скорость поезда за эти три часа?

Answer 1

Расстояние = скорость*время
расстояние 76+90+80 = 246
время в пути 3 часа
скорость= 246/3  = 82 км/ч 

Answer 2

Calculation of the Train's Speed

To find the speed of the train for the three hours, we need to calculate the total distance traveled and divide it by the total time taken.

Given information: - Distance traveled in the first hour: 76 km - Distance traveled in the second hour: 90 km - Distance traveled in the third hour: 80 km

To find the total distance traveled, we add up the distances for each hour: Total distance = 76 km + 90 km + 80 km = 246 km

The total time taken is 3 hours.

To find the speed, we divide the total distance by the total time: Speed = Total distance / Total time = 246 km / 3 hours = 82 km/h

Therefore, the speed of the train for these three hours is 82 km/h.