Question

Попрыгунья прошла 240 км за 8 часов.её скорость на 4 км/ч меньше чем скорость катера.чему равна скорость катера?

Answer 1

240:8=30(км/ч)
30+4=34(км/ч)

Answer 2

Вот решила. ... удачки

Answer 3

Problem Analysis

We are given that a person named "Попрыгунья" traveled a distance of 240 km in 8 hours. It is also mentioned that her speed is 4 km/h less than the speed of a boat (катер). We need to determine the speed of the boat.

Calculation

Let's assume the speed of the boat is x km/h. According to the given information, the speed of "Попрыгунья" is x - 4 km/h.

We can use the formula: speed = distance / time to calculate the speed.

For "Попрыгунья", the speed is (240 km) / (8 hours) = 30 km/h.

Using the same formula for the boat, we have:

x - 4 = (240 km) / (8 hours)

Simplifying the equation:

x - 4 = 30 km/h

Adding 4 to both sides:

x = 30 km/h + 4 km/h

Therefore, the speed of the boat is 34 km/h.

Answer

The speed of the boat (скорость катера) is 34 km/h.