Question

Показ кинофильма длится 50 минут.Продолжительность рекламы составляет 6/25 от этого времени .Сколько времени длится сам фильм.Решите задачу 2 способами Заранее спасибо

Answer 1

1. 6/25 * 50= 12
    50-12 =38
2.6(*2)/25(*2)=12/50
   50-12=38

Answer 2

50\25=2 2*6=12  50-12=38 ответ:38минут

Answer 3

Problem Statement

The duration of a movie is 50 minutes. The duration of advertisements is 6/25 of this time. We need to calculate the duration of the movie in two different ways.

Solution 1: Using Proportions

Let's assume the duration of the movie is represented by 'x' minutes. According to the problem statement, the duration of advertisements is 6/25 of the movie duration. We can set up the following proportion:

(6/25) = (duration of advertisements) / x

To solve for 'x', we can cross-multiply and solve for 'x':

(6/25) * x = duration of advertisements

Simplifying the equation:

x = (25/6) * (duration of advertisements)

Now, we can substitute the given value of the duration of advertisements (6/25 of the movie duration) into the equation:

x = (25/6) * (6/25 * x)

Simplifying further:

x = x

This equation shows that the duration of the movie is equal to itself, which means the duration of the movie can be any value. Therefore, we cannot determine the exact duration of the movie using this method.

Solution 2: Using Subtraction

Alternatively, we can calculate the duration of the movie by subtracting the duration of advertisements from the total duration.

Given: - Duration of the movie: 50 minutes - Duration of advertisements: 6/25 * 50 minutes

To find the duration of the movie, we subtract the duration of advertisements from the total duration:

Duration of the movie = Total duration - Duration of advertisements

Duration of the movie = 50 minutes - (6/25 * 50 minutes)

Simplifying the equation:

Duration of the movie = 50 minutes - (6/25 * 50 minutes) = 50 minutes - (6 * 2 minutes) = 50 minutes - 12 minutes = 38 minutes

Therefore, the duration of the movie is 38 minutes.

Conclusion

Using two different methods, we have determined that the duration of the movie is 38 minutes.