document.write( "Question 139313: Could someone please help with my homework problem. Can't figure out. The time required to empty a tank varies inversely as the rate of pumping. A pump can empty a tank in 90 minutes at the rate of 1200 L/min. How long will the pump take to empty the tank at 3000 L/min ? Thanks a lot. \n" ); document.write( "
Algebra.Com's Answer #101573 by edjones(8007)\"\" \"About 
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How many L in the tank?
\n" ); document.write( "1200L*90=108,000L
\n" ); document.write( "108000/3000=36 min
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