Question

Теплоход проходит по течению реки за 1 час 38 км. Скорость течения реки 4 км/час. Какое расстояние пройдет теплоход за 1 час против течения реки? Варианты: 30, 34, 42. с решением пож

Answer 1

4 1/2 = 4,5
собственная скорость теплохода равна
38-4,5=33,5 км/ч
скорость теплохода против течения составит
33,5-4,5=29 км/ч
следовательно за 1 час против течения теплоход пройдет
29*1=29 км

Answer 2

Calculation of Distance Traveled Against the River Current

To calculate the distance traveled by the boat against the river current, we need to subtract the speed of the river current from the speed of the boat.

Given information: - Speed of the boat in still water: 38 km/h - Speed of the river current: 4 km/h

To find the distance traveled by the boat against the river current, we subtract the speed of the river current from the speed of the boat:

Distance = Speed of the boat - Speed of the river current

Let's calculate it:

Distance = 38 km/h - 4 km/h Distance = 34 km/h

Therefore, the boat will travel 34 km against the river current in 1 hour.

Please let me know if you need any further assistance!