Question

Скорость катера по течению 22,5 км/ч, а против течения 18,5 км/ч. Какова собственная скорость катера?

Answer 1

(22.5+18.5):2=20.5 км/час - скор катера

Answer 2

Calculation of the Boat's Speed

To determine the boat's own speed, we need to consider the speed of the boat relative to the water. The speed of the boat in still water is the average of the speed of the boat with the current and the speed of the boat against the current.

Let's denote the boat's own speed as x km/h.

Given: - Speed of the boat with the current = 22.5 km/h - Speed of the boat against the current = 18.5 km/h

To find the boat's own speed, we can use the formula:

x = (speed with current + speed against current) / 2

Substituting the given values:

x = (22.5 + 18.5) / 2

Calculating the average:

x = 41 / 2

x = 20.5 km/h

Therefore, the boat's own speed is 20.5 km/h.

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