Workers decided to raise Rs.3lacs by equal contribution from each. Had they contributed Rs.50 eachextra, the contribution would have been Rs.3.25lacs. How many workers were they? Choose the correct choice from the following options:
A) 350
B) 400
C) 500
D) 550
E) 590
N * 50 = (325000 - 300000)= 
<gadget id="calculator">(325000 - 300000)</gadget>
<output>25_000</output>
25000   N= 25000 / 50= 
<gadget id="calculator">25000 / 50</gadget>
<output>500</output>
500   500
<result>C</result>
Workers decided to raise Rs.3lacs by equal contribution from each. Had they contributed Rs.50 eachextra, the contribution would have been Rs.3.25lacs. How many workers were they?