Question

Туристу надо было пройти 27 км.Ранним утром он шел 2 ч со скоростью 5 км/ч, затем следующие 2 ч со скоростью 4 км/ч, а остальной путь он прошёл за 3 ч,Чему была равна его скорость на последнем участке пути, если скорость его на этом участке не менялась

Answer 1

Calculation of the Tourist's Speed on the Last Leg of the Journey

To determine the speed of the tourist on the last leg of the journey, we need to calculate the total distance covered and the total time taken.

The tourist walked 2 hours at a speed of 5 km/h, covering a distance of 2 * 5 = 10 km. Then, the tourist walked another 2 hours at a speed of 4 km/h, covering a distance of 2 * 4 = 8 km.

The remaining distance is 27 km - 10 km - 8 km = 9 km. The remaining time is 3 hours.

To find the speed on the last leg, we divide the remaining distance by the remaining time: Speed = Distance / Time = 9 km / 3 h = 3 km/h.

Therefore, the speed of the tourist on the last leg of the journey, where the speed did not change, was 3 km/h.