In Richard's office one half of the workers are Indians,quarter are from America,one-fifth are from Canada and the other 100 are China. How many workers total are there in the company? Pick one.
A) 250	B) 500	C) 750	D) 1000	E) 2000
1/2x + 1/4x +1/5x = 19/20x   Remaining 1/20 x= 100   x= 100*20= 
<gadget id="calculator">100*20</gadget>
<output>2_000</output>
2000   2000 is the answer.
<result>E</result>
In Richard's office one half of the workers are Indians,quarter are from America,one-fifth are from Canada and the other 100 are China. How many workers total are there in the company?