document.write( "Question 904672: Two persons, A and B, who are 20km apart, meet after 5 hours if they walk toward each other. However if they walk in the same direction from their starting points, it takes A 15 hours to overtake B. Find their walking speed. \n" ); document.write( "
Algebra.Com's Answer #548853 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! a*5+b*5=20 \n" ); document.write( "5*(a+b)=20 \n" ); document.write( "a+b=4\r \n" ); document.write( "\n" ); document.write( "15*a-b*15=20 \n" ); document.write( "1,1,4 \n" ); document.write( "15,-15,20 \n" ); document.write( "a=8/3 kph , b= 4/3 kph\r \n" ); document.write( "\n" ); document.write( "check \n" ); document.write( "8/3+4/3=4 \n" ); document.write( "12/3=4 \n" ); document.write( "15*8/3=120/3 \n" ); document.write( "60/3 \n" ); document.write( "120/3-60/3=20 \n" ); document.write( " |