document.write( "Question 839194: A tank is having 6000 liters of water need to be drained. The draining rate is 1liter per 60sec through 1st valve & 1 liter per 15 sec through the 2nd valve. How many hours will it take to drain the tank ? \n" ); document.write( "

Algebra.Com's Answer #505593 by josgarithmetic(39620) $\"\"$ $\"About$

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Not said how the valves are used, maybe both are used simultaneously to drain the 6000 liters. The rates are combined using addition.\r
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\n" ); document.write( "\n" ); document.write( " $\"%281%2F1%2B1%2F%281%2F4%29%29=5%2F4\"$ liters per minute.
\n" ); document.write( "This is $\"%285%2F4%29%2A60=75\"$ liters per hour.\r
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\n" ); document.write( "\n" ); document.write( "Let t = How many hours to drain the 6000 liters of water.
\n" ); document.write( " $\"highlight%2875%2At=6000%29\"$
\n" ); document.write( "Solve for t \n" ); document.write( "

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