Question

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

Answer 1

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

2) 550 + 350 = 900 м/мин скорость отдаления

3) 3 часа= 180 мин

4) 900 х 180 = 162000 метров = 162 км расстояние между теплоходом и катером через 3 часа.

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.

Solution

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

Let's start by calculating the distance traveled by the steamboat. We know that the steamboat's average speed is 550 m/min. Therefore, in 3 hours (180 minutes), the steamboat will travel a distance of:

Distance traveled by steamboat = Speed × Time = 550 m/min × 180 min = 99000 meters.

Now, let's calculate the distance traveled by the motorboat. We are given that the motorboat's average speed is 200 m/min less than the steamboat's speed. Therefore, the motorboat's speed is 550 m/min - 200 m/min = 350 m/min.

Using the same formula as before, we can calculate the distance traveled by the motorboat in 3 hours:

Distance traveled by motorboat = Speed × Time = 350 m/min × 180 min = 63000 meters.

Finally, to find the distance between the steamboat and the motorboat after 3 hours, we subtract the distance traveled by the motorboat from the distance traveled by the steamboat:

Distance between the steamboat and the motorboat = Distance traveled by steamboat - Distance traveled by motorboat = 99000 meters - 63000 meters = 36000 meters.

Therefore, the distance between the steamboat and the motorboat after 3 hours is 36000 meters.

Answer

The distance between the steamboat and the motorboat after 3 hours will be 36000 meters.

References

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