document.write( "Question 1108048: A pump can fill an oil tank in 18 hours. Beginning with an empty tank, the pump and a second pump fill three-fifths of the tank in 6 hours. If the first pump is then shut off, how long will it take the second pump to finish filling the tank? \n" ); document.write( "
Algebra.Com's Answer #723054 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! Pump 1 \n" ); document.write( "18 hours to fill 1 tank\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Pump 1 plus Pump 2 \n" ); document.write( "6 hours to fill \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Pump 2 \n" ); document.write( "x unknown hours to fill 1 tank\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The question means, how much time for pump #2, to fill |