Question

Буратино и Карабас-Барабас бегают по кругу. Их скорости постоянны Известно, что Буратино бежит вдвое быстрее Карабаса-Барабаса и за 20 мин нут они в сумме пробегают 2 круга. За сколько минут Карабас-Барабас пробегает один круг?​

Answer 1

Ответ:10 кругов

Пошаговое объяснение:ну раз за 20 минут бегут 2 круга значит надо 20:2 и получится 10

Answer 2

Problem Analysis

In this problem, we are given that Buratino and Karabas-Barabas are running in circles, and their speeds are constant. We are also given that Buratino runs twice as fast as Karabas-Barabas, and in a total of 20 minutes, they complete 2 laps. We need to determine how long it takes Karabas-Barabas to complete one lap.

Solution

Let's assume that the speed of Karabas-Barabas is x units per minute. Since Buratino runs twice as fast, his speed would be 2x units per minute.

We know that in a total of 20 minutes, they complete 2 laps. This means that the time it takes for Buratino to complete one lap is 20 minutes, and the time it takes for Karabas-Barabas to complete one lap is what we need to find.

Let's set up an equation to solve for the time it takes Karabas-Barabas to complete one lap:

Time taken by Buratino to complete one lap + Time taken by Karabas-Barabas to complete one lap = Total time taken

Using the given information, we can write the equation as:

20 minutes + Time taken by Karabas-Barabas to complete one lap = 20 minutes

Simplifying the equation, we get:

Time taken by Karabas-Barabas to complete one lap = 0 minutes

This implies that Karabas-Barabas completes one lap instantaneously or in no time.

Therefore, Karabas-Barabas completes one lap in 0 minutes.

Conclusion

In the given scenario, Karabas-Barabas completes one lap in 0 minutes.