Question

Собственная скорость лодки 20,4 км/ч. Скорость течения реки 3,2км/ч. Когда катер прошел по течению 2,5 часа, до пристани оставалось еще 16,3 км. Какое расстояние проплыл катер?

Answer 1

Если катер и лодка имеется ввиду одно и то же, то
20,4+3,2=23,6
23,6*2,5=59 км

Answer 2

Problem Analysis

We are given the following information: - Boat speed: 20.4 km/h - River current speed: 3.2 km/h - Time taken to travel with the current: 2.5 hours - Distance remaining to the dock: 16.3 km

We need to find the distance traveled by the boat.

Solution

To find the distance traveled by the boat, we can use the formula:

Distance = Speed × Time

Let's calculate the distance traveled by the boat.

Calculation

The boat's speed is given as 20.4 km/h. The time taken to travel with the current is given as 2.5 hours. Therefore, the distance traveled with the current can be calculated as:

Distance with current = Speed × Time = 20.4 km/h × 2.5 hours

Using the given values, we can calculate the distance with the current.

Distance with current = 20.4 km/h × 2.5 hours = 51 km

Now, we need to find the distance traveled against the current. The river current speed is given as 3.2 km/h. The time taken to travel with the current is given as 2.5 hours. Therefore, the distance traveled against the current can be calculated as:

Distance against current = Speed × Time = (20.4 km/h - 3.2 km/h) × 2.5 hours

Using the given values, we can calculate the distance against the current.

Distance against current = (20.4 km/h - 3.2 km/h) × 2.5 hours = 42 km

To find the total distance traveled by the boat, we can add the distance with the current and the distance against the current.

Total distance traveled = Distance with current + Distance against current = 51 km + 42 km

Using the given values, we can calculate the total distance traveled.

Total distance traveled = 51 km + 42 km = 93 km

Therefore, the boat traveled a distance of 93 km.

Answer

The boat traveled a distance of 93 km.