document.write( "Question 949620: A train running between City A and City B arrives at its destination 10minutes late when it goes at 40kms.per hour. And 16minutes late when it goes at 30kms. per hour. What is the distance between two cities? \n" ); document.write( "
Algebra.Com's Answer #579814 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
A train running between City A and City B arrives at its destination 10minutes late when it goes at 40kms.per hour.
\n" ); document.write( " And 16 minutes late when it goes at 30kms. per hour.
\n" ); document.write( " What is the distance between two cities?
\n" ); document.write( ":
\n" ); document.write( "We can say that the travel time at 40 km/hr is is 6 min faster than at 30 km/hr.
\n" ); document.write( "Convert 6 min to hrs; 6/60 = .1 hrs
\n" ); document.write( ":
\n" ); document.write( "let d = the distance between the cities
\n" ); document.write( "write a time equation; time = dist/speed
\n" ); document.write( "\"d%2F30\" - \"d%2F40\" = .1
\n" ); document.write( "multiply equation by 120 and cancel the denominators
\n" ); document.write( "4d - 3d = 120*.1
\n" ); document.write( "d = 12 km \n" ); document.write( "
\n" );