Question

Речку Быстрою можно переплыть от берега до берега за 4 минуты если плыть со скоростью 90 м/мин Сколько времени потребуется для этого Оле если она будет плыть со скоростью 60м/мин?

Answer 1

Найдем ширину реки
90*4=360 м
найден время потребное Оле
360:60=6 мин

Answer 2

Calculating Time Required to Cross the River

To calculate the time required for Ole to cross the river at a speed of 60 m/min, we can use the formula:

Time = Distance / Speed

Given that the river can be crossed from one bank to the other in 4 minutes at a speed of 90 m/min, we can determine the distance between the two banks using the formula:

Distance = Speed × Time

Let's calculate the distance first:

Distance = 90 m/min × 4 min = 360 meters.

Now, we can calculate the time required for Ole to cross the river at a speed of 60 m/min:

Time = Distance / Speed = 360 meters / 60 m/min = 6 minutes.

Therefore, it will take Ole approximately 6 minutes to cross the river at a speed of 60 m/min.