Предмет: Алгебра, автор: kocurmisa

ДАЮ 40 БАЛОВ Дві бригади шляховиків, працюючи разом, можуть відремонтувати дорогу за 12 днів. За скільки днів виконала б ту саму роботу кожна бригада окремо, якщо відомо, що продуктивність однієї з них у 1,5 раза вища за продуктивність другої?

Ответы

Автор ответа: senyamaliy228

Ответ:

1 бригада - 9 днів

2 бригада 3- дня

kocurmisa: клас минус 3 бала мне по тесту ответ 20 и 30 дней.

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THE SHOEMAKER'S SHOP
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10. The shoemaker said that George's shoes were ready.
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