Algebra.Com's Answer #823519 by ikleyn(52790)![\"\"](\"/images/stars/stars-13.gif\")  
You can put this solution on YOUR website!
.
\n" );
document.write( "12. An aquarium can be filled by two inlets in 0.4 h and 0.25 h,
\n" );
document.write( "respectively, and emptied by an outlet in 0.5 h. How long would it
\n" );
document.write( "take to fill the aquarium if the inlets and outlet were operating
\n" );
document.write( "simultaneously?
\n" );
document.write( "~~~~~~~~~~~~~~~~~~~~~\r
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( "\r\n" );
document.write( "First inlet filling rate is  = 2.5 volumes per hour.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Second inlet filling rate is  = 4 volumes per hour.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The total filling rate is 2.5 + 4 = 6.5 volumes per hour.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The draining rate is  = 2 volumes per hour.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The net filling rate (accounting for draining, too) is 6.5 - 2 = 4.5 volumes per hour.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The time for filling with all inlets and the outlet operating is \r\n" );
document.write( "\r\n" );
document.write( "  of an hour =  of an hour =  minutes =  minutes = 13 minutes and 20 seconds. ANSWER\r\n" );
document.write( " \r
\n" );
document.write( "\n" );
document.write( "Solved.\r
\n" );
document.write( "
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( " \n" );
document.write( " |