In a tea factory,one half of the workers are above 50 years,quarter are between 50 to 45 years,one-fifth are between 45 to 35 years and other 30 workers are below 20 years. How many workers total are there in the factory?	Choose the correct choice from the following
A) 250 B) 366 C) 400 D) 500 E) 600
1/2x + 1/4x +1/5x = 19/20x   Remaining 1/20 x= 30   x= 30*20= 
<gadget id="calculator">30*20</gadget>
<output>600</output>
600   600 is the answer.
<result>E</result>
In a tea factory,one half of the workers are above 50 years,quarter are between 50 to 45 years,one-fifth are between 45 to 35 years and other 30 workers are below 20 years. How many workers total are there in the factory?