The workforce of Company X is 40% female. The company hired 20 additional male workers, and as a result, the percent of female workers dropped to 50%.How many employees did the company have after hiring the additional male workers? Choose the correct choice:
A) 480
B) 500
C) 520
D) 460
E) 440
let x be the total worker then 0.4x =female worker and 0.6x is male worker then 20 male worker added   04x/(0.6x +20) = 50/100 or 40x = 50*( 0.6x+100) = 30x+ 5000 or 10x = 5000 , x = 500   total worker = 500 +20= 
<gadget id="calculator">500 +20</gadget>
<output>520</output>
520   520
<result>C</result>
The workforce of Company X is 40% female. The company hired 20 additional male workers, and as a result, the percent of female workers dropped to 50%.How many employees did the company have after hiring the additional male workers?