Question

Теплоход и катер отошли одновременно от одной пристани в противоположных направлениях .Средняя скорость теплохода 550 м /мин ,а средняя скорость катера на 200м/мин меньше.Какое расстояние между ними будет через 3 часа.

Answer 1

1) 550-200=350 (м/мин) скорость катера

2) 550+350=900 (м/мин) скорость удаления

3) 900*180=162000 (м) расстояние между ними через 3 часа

Ответ: через 3 часа между ними будет 162000 метров, или 162км.

Answer 2

Problem Analysis

We are given that a steamboat and a motorboat depart simultaneously from the same dock in opposite directions. The steamboat has an average speed of 550 m/min, while the motorboat has an average speed 200 m/min less than the steamboat. We need to find the distance between them after 3 hours.

Calculation

To find the distance between the steamboat and the motorboat after 3 hours, we need to calculate the distance traveled by each of them.

The distance traveled by the steamboat in 3 hours can be calculated by multiplying its average speed by the time: Distance of steamboat = Average speed of steamboat * Time = 550 m/min * 3 hours

The distance traveled by the motorboat in 3 hours can be calculated by multiplying its average speed by the time: Distance of motorboat = Average speed of motorboat * Time = (550 m/min - 200 m/min) * 3 hours

Calculation Result

Let's calculate the distances:

Distance of steamboat = 550 m/min * 3 hours = 1650 meters

Distance of motorboat = (550 m/min - 200 m/min) * 3 hours = 1050 meters

Answer

Therefore, after 3 hours, the distance between the steamboat and the motorboat will be the sum of their distances: Distance between them = Distance of steamboat + Distance of motorboat = 1650 meters + 1050 meters = 2700 meters.

So, the distance between the steamboat and the motorboat after 3 hours will be 2700 meters.

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