Предмет: Математика, автор: ireIri8nM4alchik

из тестовых ЕГЭ по математике (профильный уровень!). Можно с объяснением? 25 баллов!
При оплате услуг мобильной связи через платежный терминал взимается комиссия 12%. Терминал принимает суммы кратные 10 рублям. Какую минимальную сумму нужно положить в данном терминале, чтобы на счёт мобильного телефона было зачислено не менее 250 рублей?

Ответы

Автор ответа: Кариночка78

250:100*12=30 руб комиссия
250+30=280руб нужно положить

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