Question

Теплоход проплыл вниз по реке x км за 3 часа,а на обратный путь он затратил 4 часа.На сколько меньше была его скорость на обратном пути?

Answer 1

V=S:t (скорость равна частному от деления расстояния на скорость)
х/3 - скорость вниз по реке
х/4 - скорость вверх по реке
х/3-х/4=4х/12-3х/12=х/12
Ответ: скорость на обратном пути  меньше на х/12 (или 1/12*х)

Answer 2

1. скорость вниз по реке - 100/4=25 км/ч
2, скорость обратно - 100/5=20 км/ч
3, 25-20=5 км/ч - разница. Это и есть ответ)

Answer 3

Calculating the Speed Difference

To calculate the difference in speed on the return trip, we can use the formula:

Speed = Distance / Time

Given that the boat traveled a distance of x km in 3 hours on the downstream trip and the same distance in 4 hours on the return trip, we can calculate the speed for each leg of the journey using the provided information.

Downstream Speed Calculation

The speed of the boat on the downstream trip can be calculated as: Speed = x km / 3 hours

Upstream Speed Calculation

The speed of the boat on the upstream trip can be calculated as: Speed = x km / 4 hours

Now, let's calculate the speeds for both the downstream and upstream trips using the given information.

Speed Calculation

The speed of the boat on the downstream trip is: Speed = x km / 3 hours The speed of the boat on the upstream trip is: Speed = x km / 4 hours By comparing the two speeds, we can determine the difference in speed between the downstream and upstream trips.