Question

Показ художественного фильма по одному из каналов телевидения 10 раз прерывался на трёхминутную рекламу, что составило 21,4%времени показа фильма. Определите, сколько времени прошло от начала до конца демонстрации фильма. (Результат округлите до единиц).

Answer 1

10*3=30 минут заняла реклама-это 21,4 процента времени показа фильма.
30/21.4=1,401869158878505*100=140мин. просили округлить

Answer 2

Calculation of Film Duration

To determine the total duration of the film's screening, we need to calculate the time spent on commercials and subtract it from the total time.

Given that the film was interrupted 10 times for 3 minutes each, the total time spent on commercials is 10 * 3 = 30 minutes.

The percentage of time spent on commercials in relation to the total screening time is 21.4%. Let's denote the total screening time as "x" minutes.

We can set up the following equation to solve for "x":

30 / x = 21.4 / 100

To find "x," we can cross-multiply and solve for it:

30 * 100 = 21.4 * x

3000 = 21.4 * x

x = 3000 / 21.4

x ≈ 140.19 minutes

Therefore, the total duration of the film's screening, rounded to the nearest unit, is approximately 140 minutes.

[[1]](https://www.academia.edu/41606107/%D0%A8%D0%B8%D0%B7%D0%BE%D0%B5%D0%B2%D0%BE%D0%BB%D1%8E%D1%86%D0%B8%D1%8F_%D0%9E%D1%87%D0%B5%D1%80%D0%BA%D0%B8_%D0%BF%D0%B5%D1%82%D0%B5%D1%80%D0%B1%D1%83%D1%80%D0%B3%D1%81%D0%BA%D0%BE%D0%B9_%D0%BA%D1%83%D0%BB%D1%8C%D1%82%D1%83%D1%80%D1%8B_%D0%B2%D1%82%D0%BE%D1%80%D0%BE%D0%B9_%D0%BF%D0%BE%D0%BB%D0%BE%D0%B2%D0%B8%D0%BD%D1%8B_%D0%A5%D0%A5_%D0%B2%D0%B5%D0%BA%D0%B0_Schizorevolution_Essays_on_the_Petersburg_culture_of_the_second_half_of_the_twentieth_century)