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?
Select:
A) 22 B) 73 C) 90 D) 77 E) 12
200*2= 
<gadget id="calculator">200*2</gadget>
<output>400</output>
400   580   -----   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?