Предмет: Экономика, автор: IlyaMalyshev007

Когда друзьям Пантелею и Прохору исполнилось 14 лет, они смогли открыть счёт в банке и сделали вклады на год в двух разных финансовых организациях. Пантелей – под 9% годовых, но, если он снимет раньше срока деньги, то потеряет все начисленные %, а Прохор – под 6% годовых, с сохранением процентов в случае досрочного закрытия вклада в отличие от вклада Пантелея. Через год при закрытии своих вкладов и снятии денег они получили одинаковые суммы денег. Какую сумму положил в банк каждый из друзей, если общее количество денег у друзей было равно 1 200 000 рублей? ПОЖАЛУЙСТА! СРОЧНО!!!

Ответы

Автор ответа: Удачник66
0

Ответ:

Объяснение:

1200000 на двоих - нехилая сумма для 14-летних мальчиков.

Они оба сделали вклад на год, и оба продержались.

Значит, условие для Пантелея, что он потеряет %, если закроет вклад досрочно - не сработало.

У них вдвоем было 1 200 000 руб.

У Пантелея было х рублей, и он получил 1,09х.

А у Прохора было (1200000 - х) рублей, и он получил 1,06(1200000 - х).

И суммы оказались равны.

1,06(1200000 - x) = 1,09x

1272000 - 1,06x = 1,09x

2,15x = 1272000

x ≈ 591627,91 рублей было у Пантелея.

А стало 591627,91*1,09 = 644874,4219

1200000 - 591627,91 = 608372,09 рублей было у Прохора.

А стало 608372,09*1,06 = 644874,4154

Разница в 0,65 копейки из-за округления.

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