Предмет: Математика, автор: veronika235

Пароход проплыл по течению 100км за 5 часов.Это же расстояние против течения он проплыл за 10 часов.Какова скорость течения реки?

Ответы

Автор ответа: aleksb1

Скорость парохода по течению составила:

100:5=20 км/ч

Скорость парохода против течения:
100:10 = 10 км/ч

Пусть х км/ч скорость течения, составим уравнение:

20-х = 10+х

2х = 20-10

2х = 10

х = 5 км/ч

Ответ: скорость течения реки 5 м/ч.

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