Mathematics
Mathematics, 01.05.2021 14:00, janeou17xn

Три бригады рабочих, работая вместе, отремотировали задние к некоторому сроку. Если бы работала только первая бригада то ей потребовалось на 10 дней больше срока. Если бы работала только вторая бригада, то ей потребовалось бы на 20 дней больше срока, а если бы работала только третье бригада, то её нужно было бы в 6 раза больше дней, чем по сроку. За сколько дней может выполнить задание каждая бригада, работала самостоятельно.

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Три бригады рабочих, работая вместе, отремотировали задние к некоторому сроку. Если бы работала толь...

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