Question

The average monthly salary of $500$ employees (including all) in a factory is $\text{Rs.}400.$ If the average monthly salary of officers is $\text{Rs.}1000$ and the average monthly salary of the skilled workers is $\text{Rs.}200,$ then the number of skilled workers is

• A. $375$
• B. $350$
• C. $300$
• D. $450$

Answer 1

The correct option is A $375$

Total salary of $500$ workers $=500\times 400$
Let the number of skilled workers be $x.$
Then, $200x+(500-x)1000=500\times 400$
$\Rightarrow x+(500-x)5=1000$
$\Rightarrow 4x=1500$
$\Rightarrow x=375$
Hence, the number of skilled workers is $375.$