document.write( "Question 488920: Pipe M can fill a tank in 36 hours, and pipe N can fill it in a certain time. If both pipes are opened simultaneously, the tank gets filled in 24 hours. Find the time it takes pipe N alone to fill the tank. \n" ); document.write( "
Algebra.Com's Answer #333484 by stanbon(75887) ![]() You can put this solution on YOUR website! Pipe M can fill a tank in 36 hours, and pipe N can fill it in a certain time. If both pipes are opened simultaneously, the tank gets filled in 24 hours. Find the time it takes pipe N alone to fill the tank. \n" ); document.write( "---- \n" ); document.write( "Pipe M rate: 1/36 job/hr \n" ); document.write( "--- \n" ); document.write( "Pipe N rate: 1/x job/hr \n" ); document.write( "--- \n" ); document.write( "Together rate: 1/24 job/hr \n" ); document.write( "----- \n" ); document.write( "Equation: \n" ); document.write( "rate + rate = together rate \n" ); document.write( "1/36 + 1/x = 1/24 \n" ); document.write( "24x + (24*36) = 36x \n" ); document.write( "12x = (24*36) \n" ); document.write( "x = 72 hrs (time for Pipe N to fill the tank alone) \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |