Question

Скорость течения 2,2 км\ч. Собственная скорость катера 15,3 км\ч. Какой путь прошёл катер, если по течению он ушёл 3 часа, а против 4 часа?

Answer 1

Скорость по течению:
2,2+15,3=17,5 км/ч
скорость против течения: 
15,3-2,2=13,1 км/ч
Найдём путь, который прошел катер:
3*17,5 +4*13,1=52,5+52,4=104,9 км.

Answer 2

Calculation of the Distance Traveled by the Boat

To calculate the distance traveled by the boat, we need to consider the speed of the current and the boat's own speed.

Given: - Speed of the current: 2.2 km/h - Speed of the boat: 15.3 km/h - Time spent traveling with the current: 3 hours - Time spent traveling against the current: 4 hours

To calculate the distance traveled with the current, we can use the formula:

Distance = Speed × Time

For the boat traveling with the current: - Speed = Boat's speed + Current's speed = 15.3 km/h + 2.2 km/h = 17.5 km/h - Time = 3 hours

Using the formula, we can calculate the distance traveled with the current:

Distance with the current = Speed × Time = 17.5 km/h × 3 hours = 52.5 km.

Similarly, for the boat traveling against the current: - Speed = Boat's speed - Current's speed = 15.3 km/h - 2.2 km/h = 13.1 km/h - Time = 4 hours

Using the formula, we can calculate the distance traveled against the current:

Distance against the current = Speed × Time = 13.1 km/h × 4 hours = 52.4 km.

Therefore, the boat traveled a distance of 52.5 km with the current and 52.4 km against the current.

Please let me know if there's anything else I can help you with!