Question

Телефонная компания предоставляет на выбор три тарифных плана. Тарифный планАбонентская плата (в месяц)Плата за 1 минуту разговораБезлимитный 200 руб. — Комбинированный 150 руб. за 300 минут разговора 20 коп. за каждую минуту сверх 300 минут Повременный — 35 коп. Абонент выбрал самый выгодный для себя план, исходя из того, что общая длительность его телефонных разговоров в месяц составляет в среднем 500 минут. Какую сумму (в рублях) он заплатит за месяц, если общее время телефонных разговоров действительно составит 500 минут?

Answer 1

Если правильно разобрала условие задачи, скопированное с таблицы, то:
Если абонент выберет:
- Безлимитный тариф, то заплатит 200 руб./мес
- Комбинированный тариф, то: 150 + 200*0,2 = 190 руб./мес.
- Повременный тариф, то: 0,35*500 = 175 руб./мес.
Выгодный тариф - Повременный
Ответ: 175 руб./мес

Answer 2

To calculate the amount the subscriber will pay for the chosen plan, we need to consider the details of each plan and the subscriber's average monthly call duration.

The three tariff plans offered by the telephone company are: 1. Unlimited Plan: Monthly fee - 200 rubles, no additional charge per minute. 2. Combined Plan: Monthly fee - 150 rubles for 300 minutes of conversation, additional charge of 20 kopeks per minute for any calls beyond 300 minutes. 3. Time-based Plan: Charge of 35 kopeks per minute, no monthly fee.

The subscriber has chosen the plan that is most beneficial for them, based on their average monthly call duration of 500 minutes.

To calculate the total amount the subscriber will pay for the month, we need to consider the plan they have chosen and their call duration.

Calculation:

1. Unlimited Plan: Since there is no additional charge per minute, the subscriber will pay only the monthly fee of 200 rubles. 2. Combined Plan: The subscriber's call duration of 500 minutes exceeds the included 300 minutes. Therefore, they will pay the monthly fee of 150 rubles for the first 300 minutes, and an additional charge of 20 kopeks per minute for the remaining 200 minutes (500 - 300 = 200). - Additional charge for 200 minutes: 200 minutes * 20 kopeks = 40 rubles. - Total charge for the Combined Plan: 150 rubles + 40 rubles = 190 rubles. 3. Time-based Plan: The subscriber will pay a charge of 35 kopeks per minute for the entire call duration of 500 minutes. - Total charge for the Time-based Plan: 500 minutes * 35 kopeks = 175 rubles.

Conclusion:

Based on the subscriber's average monthly call duration of 500 minutes, the amount they will pay for the month will depend on the plan they have chosen: - For the Unlimited Plan: 200 rubles. - For the Combined Plan: 190 rubles. - For the Time-based Plan: 175 rubles.

Therefore, the subscriber will pay 190 rubles for the month if their total call duration is 500 minutes.