Question

От двух пристаней, расстояние между которыми 240 км, отошли одновременно навстречу друг другу два катера: один со скоростью 18 км/ч , а другой - 22 км/ч. Через сколько часов катера встретятся?

Answer 1

1)18+22=40 км/ч - скорость встречи катеров
2)240:40=6 ч - встретятся катера
Ответ: 6 ч

Answer 2

За час оба катера проходят 18+22=40 км.
240 км они преодолеют за 240/40=6 часов.
 Катера встретятся через 6 часов

Answer 3

Problem Analysis

We have two boats that start from two different ports and travel towards each other. The distance between the ports is 240 km. The first boat travels at a speed of 18 km/h, and the second boat travels at a speed of 22 km/h. We need to determine how many hours it will take for the boats to meet.

Solution

To solve this problem, we can use the formula: time = distance / speed.

Let's calculate the time it takes for each boat to travel the distance between the ports:

- For the first boat: time1 = distance / speed1 = 240 km / 18 km/h = 13.33 hours. - For the second boat: time2 = distance / speed2 = 240 km / 22 km/h = 10.91 hours.

Since the boats start at the same time, they will meet when the sum of their travel times is equal to the time it takes for them to meet. Let's calculate the total time it takes for the boats to meet:

- Total time = time1 + time2 = 13.33 hours + 10.91 hours = 24.24 hours.

Therefore, the boats will meet after approximately 24.24 hours.

Answer

The boats will meet after approximately 24.24 hours.

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