There are some pigeons and hares in a zoo. If heads are counted, there are 200. If legs are counted, there are 580. The number of hares in the zoo is?	Choose the correct choice from the following answers:
A) 100 B) 120 C) 90 D) 95 E) 80
200*2= 
<gadget id="calculator">200*2</gadget>
<output>400</output>
400   580=&gt;180   1----2   ?----180 = 90   ANSWER 90
<result>C</result>
There are some pigeons and hares in a zoo. If heads are counted, there are 200. If legs are counted, there are 580. The number of hares in the zoo is?