Question

На концерте было исполнено 9 киев по 3 минуты, 5 киев по 4 минуты и еще полчаса на сцене выступал хор, исполнив 3 произведения. Между всеми киями и хоровыми произведениями интервал 2 минуты. Вычисли продолжительность концерта.

Answer 1

Ответ:

продолжительность концерта составляет 109 минут.

Пошаговое объяснение:

Давайте разберемся пошагово.

1. 9 киев по 3 минуты каждый: 9 киев * 3 минуты/кий = 27 минут.

2. 5 киев по 4 минуты каждый: 5 киев * 4 минуты/кий = 20 минут.

3. Хор выступал полчаса, что составляет 30 минут.

4. Между всеми киями и хоровыми произведениями был интервал по 2 минуты каждый. Интервалов было на один меньше, чем количество выступлений, так как последнее выступление завершается без интервала. Итак, интервалов было (9 киев + 5 киев + 3 произведения хора - 1) * 2 минуты/интервал = 32 минут.

Теперь сложим все эти временные интервалы:

27 минут + 20 минут + 30 минут + 32 минут = 109 минут.

Таким образом, продолжительность концерта составляет 109 минут.

Answer 2

Calculating the Duration of the Concert

To calculate the duration of the concert, we need to add up the durations of the Kiev performances, the choir performances, and the intervals between them.

Let's break down the information provided:

- 9 Kiev performances, each lasting 3 minutes - 5 Kiev performances, each lasting 4 minutes - The choir performed 3 pieces - There is a 2-minute interval between each Kiev performance and choir performance

To calculate the duration of the Kiev performances, we can multiply the number of performances by their respective durations:

- 9 Kiev performances * 3 minutes = 27 minutes - 5 Kiev performances * 4 minutes = 20 minutes

The choir performed 3 pieces, but we don't know the duration of each piece. Therefore, we cannot calculate the exact duration of the choir performances.

However, we do know that there is a 2-minute interval between each Kiev performance and choir performance. Since there are 9 Kiev performances and 5 choir performances, there are a total of 14 intervals between them. Multiplying the number of intervals by 2 minutes gives us:

- 14 intervals * 2 minutes = 28 minutes

Adding up the durations of the Kiev performances and the intervals between them, we get:

- Kiev performances: 27 minutes - Intervals: 28 minutes

Therefore, the total duration of the Kiev performances and intervals is 55 minutes.

Unfortunately, we cannot calculate the exact duration of the choir performances without knowing the duration of each piece. However, we do know that the choir performed for half an hour, which is equivalent to 30 minutes.

To calculate the total duration of the concert, we can add up the durations of the Kiev performances, intervals, and choir performances:

- Kiev performances and intervals: 55 minutes - Choir performances: 30 minutes

Adding these durations together, we get:

- Total duration of the concert: 55 minutes + 30 minutes = 85 minutes

Therefore, the duration of the concert is 85 minutes.

Please note that the duration of the choir performances is an estimation based on the given information.