In a company there are $75 %$ skilled workers and remaining ones are unskilled. $80 %$ of the skilled workers and $20 %$ of the unskilled workers are permanent. If the number of temporary workers is $126$ , then what is the number of total workers?

480

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510

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360

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377

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Solution

The correct option is A $360$
(c) Let the total number of wworkers $= 100$
Number of skilled workers $= 75 %$ of $100 = 75$
$∴$ Number of unskilled workers $= 100 - 75 = 25$
Number of permanent workers $= 80 %$ of $75 + 20 %$ of $25$
$= \frac{80}{100} \times 75 + \frac{20}{100} \times 25 = 60 + 5 = 65$
Number of temporary workers $= 100 - 65 = 35$
When the number of temporary workers is $35$ , total number of workers $= 100$
When the number of temporary workers is $126$ ,
Total number of worker is $\frac{100}{35} \times 126 = 360$ .

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In a company there are 75% skilled workers and remaining ones are unskilled. 80% of the skilled workers and 20% of the unskilled workers are permanent. If the number of temporary workers is 126, then what is the number of total workers?

In a company there are $75 %$ skilled workers and remaining ones are unskilled. $80 %$ of the skilled workers and $20 %$ of the unskilled workers are permanent. If the number of temporary workers is $126$ , then what is the number of total workers?