document.write( "Question 1135102: Commuter trains leaves every 20 minutes from 6 am through 9am and every 30 minutes until 9 pm. How many trains leave the station from 6 am through 4pm?\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #752676 by MathTherapy(10810)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Commuter trains leaves every 20 minutes from 6 am through 9am and every 30 minutes until 9 pm. How many trains leave the station from 6 am through 4pm?
\n" ); document.write( "
Number from 6:00 a.m. - 8:40 a.m., inclusive: 9
\n" ); document.write( "Number from 9:00 a.m. - 4:00 p.m., inclusive: 15
\n" ); document.write( " \n" ); document.write( "
\n" );