An employer pays Rs.20 for each day a worker works and for feits Rs.3 for each day is ideal at the end of sixty days a worker gets Rs.280 . for how many days did the worker remain ideal? Choices:
A) 20	B) 30	C) 40	D) 50	E) 60
if he work for 20 days then he get =20*20=Rs.400   and left 40 days he will not work so for this employer feits Rs.120   now total earning of a worker =400-120= 
<gadget id="calculator">400-120</gadget>
<output>280</output>
280   40 days he will be ideal   ANSWER:40
<result>C</result>
An employer pays Rs.20 for each day a worker works and for feits Rs.3 for each day is ideal at the end of sixty days a worker gets Rs.280 . for how many days did the worker remain ideal?