At the moment there are 54,210 tagged birds in a certain wildlife refuge. If exactly 30 percent of all birds in the refuge are tagged, what percent of the untagged birds must be tagged so that half of all birds in the refuge are tagged?	Select the correct option.
A) 66.67	B) 66	C) 67	D) 65.99	E) 67.26
66.67ll birds = 54210   Currently Tagged = 54210 * 30/100= 
<gadget id="calculator">54210 * 30/100</gadget>
<output>16_263</output>
16263   So Untagged birds= 54210 - 16263= 
<gadget id="calculator">54210 - 16263</gadget>
<output>37_947</output>
37947   Half of all birds= 27105   The number of birds to be tagged to make half of all birds tagged = 27105 - 16263= 
<gadget id="calculator">27105 - 16263</gadget>
<output>10_842</output>
10842   So now the question remains - 10842 is how much percentage of untagged birds (16263)= 10842*100/16263   = 66.67   66.67nswer (66.67)
<result>A</result>
At the moment there are 54,210 tagged birds in a certain wildlife refuge. If exactly 30 percent of all birds in the refuge are tagged, what percent of the untagged birds must be tagged so that half of all birds in the refuge are tagged?