Question

Скорость лодки по течению реки 10км/ч а против течения 6км. Найдите собственную скорость лодки. Найдите скорость течения.

Answer 1

8+2=10км/ч
8-2=6км/ч

Answer 2

собственная скорость лодки 8км/ч, скорость течения реки - 2км/ч
Проверка:
8+2=10(км/ч)-скорость лодки по течению
8-2=6(км/ч)-скорость лодки против течения

Answer 3

Calculation of Boat's Speed and River Current

To find the boat's speed and the speed of the river current, we can use the following formula:

Boat's Speed + River Current Speed = Speed of Boat Downstream Boat's Speed - River Current Speed = Speed of Boat Upstream

Given that the boat's speed downstream (with the current) is 10 km/h and the boat's speed upstream (against the current) is 6 km/h, we can set up the following equations:

Boat's Speed + River Current Speed = 10 km/h Boat's Speed - River Current Speed = 6 km/h

To solve these equations, we can use the method of elimination. By adding the two equations together, we can eliminate the river current speed and solve for the boat's speed:

(Boat's Speed + River Current Speed) + (Boat's Speed - River Current Speed) = 10 km/h + 6 km/h 2 * Boat's Speed = 16 km/h Boat's Speed = 8 km/h

Now that we have the boat's speed, we can substitute it back into one of the original equations to find the river current speed:

Boat's Speed + River Current Speed = 10 km/h 8 km/h + River Current Speed = 10 km/h River Current Speed = 10 km/h - 8 km/h River Current Speed = 2 km/h

Therefore, the boat's speed is 8 km/h and the speed of the river current is 2 km/h.