Question

Расстояние в 132 км теплоход прошел за 3 часа с посстоянной скоростью.За сколько часов это расстояние преодолеет катер,если его скорость в 2 раза меньше скорости теплохода?

Answer 1

132:3=44 км/ч скорость теплохода
44:2=22 км/ч скорость катера
132:22=6 часов
Ответ: за 6 часов катер преодолеет это расстояние

Answer 2

Problem Analysis

We are given that a boat traveled a distance of 132 km in 3 hours at a constant speed. We need to determine how long it would take a smaller boat, traveling at half the speed of the first boat, to cover the same distance.

Solution

Let's assume the speed of the first boat (teplodoh) is x km/h. We are given that it traveled a distance of 132 km in 3 hours. Using the formula speed = distance / time, we can write the equation:

x = 132 / 3.

Simplifying the equation, we find that the speed of the first boat is x = 44 km/h.

Now, let's assume the speed of the second boat (kater) is half the speed of the first boat. Therefore, the speed of the second boat is x/2 = 44/2 = 22 km/h.

To find the time it takes for the second boat to cover the same distance, we can use the formula time = distance / speed. Substituting the values, we have:

time = 132 / 22.

Simplifying the equation, we find that the second boat will take 6 hours to cover the same distance.

Therefore, the second boat (kater) will take 6 hours to cover a distance of 132 km, given that its speed is half that of the first boat (teplodoh).

Answer

The second boat (kater) will take 6 hours to cover a distance of 132 km, given that its speed is half that of the first boat (teplodoh).