Question

По течению катер прошёл 150 км за 5 ч. Против течения его скорость была на 12 км/ч меньше, чем то течению. Сколько километров катер прошел против течения 3 ч.

Answer 1

1) 150:5 30(км/ч)
2)30-12=18(км/ч)
3)18*3=54(км)
И знай это может быть неправильно 

Answer 2

Task: Calculate the distance traveled by the boat against the current in 3 hours.

To calculate the distance traveled by the boat against the current in 3 hours, we need to determine the boat's speed against the current.

Given that the boat's speed against the current is 12 km/h less than its speed with the current, we can calculate the boat's speed with the current by adding 12 km/h to its speed against the current.

Let's denote the boat's speed with the current as x km/h. Therefore, the boat's speed against the current would be x - 12 km/h.

We are also given that the boat traveled 150 km in 5 hours with the current. Using the formula distance = speed × time, we can set up the following equation:

150 = x × 5

Solving this equation, we find that the boat's speed with the current (x) is 30 km/h.

Now, we can calculate the boat's speed against the current by subtracting 12 km/h from the speed with the current:

Speed against the current = 30 - 12 = 18 km/h.

To calculate the distance traveled by the boat against the current in 3 hours, we can use the formula distance = speed × time:

Distance = 18 km/h × 3 hours = 54 km.

Therefore, the boat traveled 54 km against the current in 3 hours.