At the Widget factory, 20 percent of the employees are engineers and 50 percent are builders. If there are 57 other employees at the Widget factory, how many total employees work there?  Choices.
A) 190	B) 180	C) 160	D) 200	E) 400
Let the total number of employees in the factory be x   % of engineers = 20%   % of builders = 50%   % of other employees = 100% - 70% = 30%   But this number is given as 57   so 30% of x 100  - 70= 
<gadget id="calculator">100  - 70</gadget>
<output>30</output>
30%   But this number is given as 57   so 30% of x= 57   x = (57)(100/30) = 570/3= 
<gadget id="calculator">570/3</gadget>
<output>190</output>
190   Therefore there a total of 190 employees in the Widget factory.   Correct answer - 190
<result>A</result>
At the Widget factory, 20 percent of the employees are engineers and 50 percent are builders. If there are 57 other employees at the Widget factory, how many total employees work there?