document.write( "Question 250181: An ultra light aircraft flies to a nearby town that is 20 miles away in 2/5 hour with a tail wind. It can fly back home again when fighting a head wind in 1/2 hour. Find the air speed of the ultra light aircraft and the wind speed. \n" ); document.write( "
Algebra.Com's Answer #182243 by checkley77(12844)\"\" \"About 
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D=RT OR R=D/T
\n" ); document.write( "R=25/.4=62.5 MPH WITH A TAIL WIND.
\n" ); document.write( "R=25/.5=50 MPH AGAINST THE WIND.
\n" ); document.write( "(62.5-50)/2=12.5/2=6.25 IS THE SPEED OF THE WIND.
\n" ); document.write( "PROOF:
\n" ); document.write( "62.5-6.25=56.25 MPH FOR THE PLANE.
\n" ); document.write( "50+6.25=56.25 DITTO.\r
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