document.write( "Question 591040: A plane flew 1740 km in 6 hours with tail wind. On return trip, going into the wind, the plane flew 570 km in 3 hours. What is the planes speed if there was no wind. \n" ); document.write( "
Algebra.Com's Answer #375456 by Alan3354(69443)\"\" \"About 
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A plane flew 1740 km in 6 hours with tail wind. On return trip, going into the wind, the plane flew 570 km in 3 hours. What is the planes speed if there was no wind.
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\n" ); document.write( "1740 km/6 hr = 290 km/hr
\n" ); document.write( "570 km/3 hr = 190 km/hr
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\n" ); document.write( "The plane's airspeed is the average = 240 km/hr
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\n" ); document.write( "The term is airspeed, and planes don't use kilometers.
\n" ); document.write( "They use nautical miles and knots.
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