document.write( "Question 1039047: two trains 150 km apart travel toward each other on parallel tracks, each moving at 25 km/hr. A bird flies back and forth between the trains at 15 km/hr until the trains pass each other. How far does the bird fly?
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Algebra.Com's Answer #653769 by ikleyn(52824)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "two trains 150 km apart travel toward each other on parallel tracks, each moving at 25 km/hr. \n" ); document.write( "A bird flies back and forth between the trains at 15 km/hr until the trains pass each other. How far does the bird fly? \n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Answer. 45 km.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Solution\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The trains pass each other in \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The bird flies 15*3 = 45 km during this time.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "It is well known old joking problem.\r \n" ); document.write( "\n" ); document.write( "Well-known for more than 100 years.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Ha-ha-ha.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |