In an animal behavior experiment, 50 tagged white pigeons and 200 tagged gray pigeons were released from a laboratory. Within one week, 90 percent of the white pigeons and 80.5 percent of the gray pigeons had returned to the laboratory. What percent of the total number of pigeons returned to the laboratory?
Answers:	A) 80.5	B) 82.4	C) 82.5	D) 85	E) 86.5
Weighted mix method is best here....   Ratio is 1:4 for 90:80.5...   So the answer required = 80.5+ (90-80.5)*1/5=80.5+9.5*1/5   80.5+1.9= 
<gadget id="calculator">80.5+1.9</gadget>
<output>82.4</output>
82.4   82.4
<result>B</result>
In an animal behavior experiment, 50 tagged white pigeons and 200 tagged gray pigeons were released from a laboratory. Within one week, 90 percent of the white pigeons and 80.5 percent of the gray pigeons had returned to the laboratory. What percent of the total number of pigeons returned to the laboratory?