Question

Скорость течение 1км ч . Собственная скорость лодки 7 км ч. Какое расстояние проплывёт лодка за 2,5 ч

Answer 1

(7+1)*2,5=20км-если лодка идет по течению 
(7-1)*2,5 =15 км - если лодка идет против течения

Answer 2

Calculation of Distance Traveled by Boat

To calculate the distance the boat will travel, we can use the formula:

Distance = Speed × Time

Given: - Speed of the current: 1 km/h - Speed of the boat: 7 km/h - Time: 2.5 hours

Using the given values, we can calculate the distance traveled by the boat.

Calculation

The effective speed of the boat can be calculated as the difference between the boat's speed and the speed of the current: Effective Speed = Boat's Speed - Current's Speed

Effective Speed = 7 km/h - 1 km/h = 6 km/h

Now, we can calculate the distance traveled by the boat: Distance = Effective Speed × Time

Distance = 6 km/h × 2.5 h = 15 km

So, the boat will travel a distance of 15 kilometers in 2.5 hours.