document.write( "Question 583524: David and Frank cycle from Islamabad to Murree, a distance of 210 km, at speeds of 20 km/hr and 15 km/hr respectively. David reaches Murree and starts back for Islamabad. How far from Murree will he meet Frank?\r
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Algebra.Com's Answer #372482 by mananth(16946)\"\" \"About 
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David and Frank cycle from Islamabad to Murree, a distance of 210 km, at speeds of 20 km/hr and 15 km/hr respectively. David reaches Murree and starts back for Islamabad. How far from Murree will he meet Frank?\r
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\n" ); document.write( "\n" ); document.write( "David speed = 20 km/h
\n" ); document.write( "distance = 210 km
\n" ); document.write( "time david = 210/20 = 10.5 hours\r
\n" ); document.write( "\n" ); document.write( "Frank speed = 15 km/h
\n" ); document.write( "In 10.5 hours he travels = 15*10.5 = 157.5 km\r
\n" ); document.write( "\n" ); document.write( "When David starts his return Frank has traveled 157.5\r
\n" ); document.write( "\n" ); document.write( "distance between them = 210 - 157.5 = 52.5 km\r
\n" ); document.write( "\n" ); document.write( "they are moving towards each other\r
\n" ); document.write( "\n" ); document.write( "add up speeds
\n" ); document.write( "15+20 = 35 km/h
\n" ); document.write( "distance = 52.5 km\r
\n" ); document.write( "\n" ); document.write( "time = 52.5 /35 =1.5 hours\r
\n" ); document.write( "\n" ); document.write( "David meets after 1.5 hours from Murree
\n" ); document.write( "David speed = 20 km/h
\n" ); document.write( "time = 1.5 hours\r
\n" ); document.write( "\n" ); document.write( "30 km from Murree.\r
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