10. In a company, there are 75% skilled workers and the remaining are unskilled. 80% of skilled workers and
20% of unskilled workers are permanent. If the number of temporary workers is 126, then what is the total
number of workers?
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Step-by-step explanation:
Let the number of total workers=x
Number of skilled workers = 75%ofx = 75x/100 = 3x/4
No. of unskilled workers = 25%ofx = 25x/100 = x/4
No. of permanent workers = 80/100 × 3x/4 + 20/100 × x/4 = 3x/5 + x/20 = 13x/20
No of temporary workers = x − 13x/20 = 7x/20
Now, 7x/20 = 126
x=360
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