total race distance 2100
A flight beat B flight by 420 when wind is in the race direction,it beats B by 300 when opposite.find the still fight speeds	Choose the correct answer:
A) 300	B) 360	C) 400	D) 450	E) 480
(420+300)/2= 
<gadget id="calculator">(420+300)/2</gadget>
<output>360</output>
360   ANSWER:360
<result>B</result>
total race distance 2100
A flight beat B flight by 420 when wind is in the race direction,it beats B by 300 when opposite.find the still fight speeds