document.write( "Question 615712: Ramaswamy walked to the town at a speed of 4 km/hr and came back by bicycle at a speed of 12 km/hr.The total time for to and fro journey was 5/2 hrs.Find the times taken by him to travel by foot and bicycle. \n" ); document.write( "
Algebra.Com's Answer #387354 by ankor@dixie-net.com(22740)\"\" \"About 
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amy walked to the town at a speed of 4 km/hr and came back by bicycle at a speed of 12 km/hr.
\n" ); document.write( "The total time for to and fro journey was 5/2 hrs.
\n" ); document.write( "Find the times taken by him to travel by foot and bicycle.
\n" ); document.write( ":
\n" ); document.write( "Let t = time at 12 km/h
\n" ); document.write( "then
\n" ); document.write( "(2.5-t) = time at 4 km/hr
\n" ); document.write( ":
\n" ); document.write( "Write a distance equation: dist = speed * time
\n" ); document.write( ":
\n" ); document.write( "ride dist = walk dist
\n" ); document.write( "12t = 4(2.5-t)
\n" ); document.write( "12t = 10 - 4t
\n" ); document.write( "12t + 4t = 10
\n" ); document.write( "16t = 10
\n" ); document.write( "t = 10/16
\n" ); document.write( "t = .625 hrs to return on the bike
\n" ); document.write( "then
\n" ); document.write( "2.5 - .625 = 1.875 hrs to walk it
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Confirm this by finding the distances
\n" ); document.write( ".625(12) = 7.5 km
\n" ); document.write( "1.875(4) = 7.5 km \n" ); document.write( "
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