document.write( "Question 761773: a motorist travelled 115km on an expressway at an average speed of 92km/h & another 45 minutes on other roads. If the average speed for his whole journey was 80km/h,how far did he travel on the other roads? \n" ); document.write( "
Algebra.Com's Answer #463454 by Cromlix(4381)\"\" \"About 
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Time = Distance/Speed = 115/92 = 1.25hours
\n" ); document.write( "45 mins/60 mins = 0.75hours
\n" ); document.write( "1.25 + 0.75 = 2.00 hours.
\n" ); document.write( "Distance = Speed * Time = 80 * 2 = 160miles
\n" ); document.write( "Therefore 160km - 115km = 45km
\n" ); document.write( "He travelled 45km on other roads.
\n" ); document.write( "Hope this helps.
\n" ); document.write( ":-)
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