Mathematics, 05.12.2020 14:00, amelvin41

The fraction of skilled workers is 4/9 , unskilled workers 1/10 supervisors 2/7 and the rest are managers if the total number of employees is 630 what is the number of managers?

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The fraction of skilled workers is 4/9 , unskilled workers 1/10 supervisors 2/7 and the rest are man...