Предмет: Математика, автор: avapro1

В трех цехах 87 рабочих. В первом на 17 человек больше,чем во втором, а во втором в три раза больше, чем в третем. Сколько рабочих в каждом цехе.

Ответы

Автор ответа: fanta2310

1 цех - ? на 17 чел >, чем во 2ом
2 цех - ? в 3 раза >, чем в третем
3 цех - ?
Всего 87 чел
х + 3х + 3х+17 = 87
7х = 87 - 17
7х = 70
х = 10 чел в 3ем цехе
3 * 10 = 30 чел во 2ом цехе
30 + 17 = 47 чел в 1ом цехе

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