document.write( "Question 798525: A motorist undertakes a journey to a point and travels at an average speed of 50km/h. His average speed for the return journey is 60km/h and he completes it in 3 hours less than it took him to reach his destination. How long did the forward journey take? \n" ); document.write( "
Algebra.Com's Answer #482252 by mananth(16946)![]() ![]() You can put this solution on YOUR website! let him take x hours to go there\r \n" ); document.write( "\n" ); document.write( "distance = 50x\r \n" ); document.write( "\n" ); document.write( "return he takes x-3 hours \n" ); document.write( "at 60 km/h\r \n" ); document.write( "\n" ); document.write( "distance = (x-3)*60\r \n" ); document.write( "\n" ); document.write( "distance is same\r \n" ); document.write( "\n" ); document.write( "(x-3)*60=50x\r \n" ); document.write( "\n" ); document.write( "60x-180=50x\r \n" ); document.write( "\n" ); document.write( "10x=180\r \n" ); document.write( "\n" ); document.write( "x=18 hours \n" ); document.write( " |