Question

Пароход за 10ч прошел вниз по реке 224 км, а вверх на 62,5% меньше. Чему равна средняя скорость парохода?

Answer 1

1) 224 - 224 • 0,625 = 224 - 140 = 84 ( км ) вверх по реке
2) 224 + 84 = 308 ( км ) общий путь
3) 308 : 10 = 30,8 ( км/час ) Ответ

Answer 2

Вниз его скорость была равна 224/10=22.4 км/ч
Вверх, он проплыл (224/100)*62.5=140 км
Скорость вверх 140/10=14 км/ч

Средняя (14+22,4)/2= 18,2 км/ч

Answer 3

Calculation of Average Speed

To calculate the average speed of the steamboat, we need to consider the distance traveled and the time taken in both directions.

Given: - Distance traveled downstream: 224 km - Distance traveled upstream: 62.5% less than the downstream distance

Let's calculate the distance traveled upstream: 62.5% of 224 km = 0.625 * 224 km = 140 km

Now, we have the following distances: - Distance downstream: 224 km - Distance upstream: 140 km

To find the average speed, we need to know the total time taken for the round trip. However, the time taken for the journey is not provided in the question. Without the time information, we cannot calculate the average speed accurately.

Please provide the time taken for the round trip, and I will be happy to help you calculate the average speed of the steamboat.