document.write( "Question 1195293: A ﬁsh tank in a pet store was less than half full of water when a worker turned on a hose to ﬁll the tank at a constant rate. After the hose was on for 5 minutes, the tank was exactly half full. After the hose was on for 30 minutes, the tank was three-quarters full. How many minutes did it take after the hose was turned on for the tank to be completely ﬁlled with water?
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Algebra.Com's Answer #827744 by ikleyn(52864) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "A ﬁsh tank in a pet store was less than half full of water
\n" ); document.write( "when a worker turned on a hose to ﬁll the tank at a constant rate.
\n" ); document.write( "After the hose was on for 5 minutes, the tank was exactly half full.
\n" ); document.write( "After the hose was on for 30 minutes, the tank was three-quarters full.
\n" ); document.write( "How many minutes did it take after the hose was turned on for the tank
\n" ); document.write( "to be completely ﬁlled with water?
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\n" ); document.write( "\n" ); document.write( " It is a joke Math problem, and it can be solved in couple of lines
\n" ); document.write( " using simple and elementary reasoning INSTEAD of using complicated formulas.\r
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document.write( "In 30-5 = 25 minutes, the hose fills the tank from 1/2 to 3/4.\r\n" );
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document.write( "In other words, it takes 25 minutes to fill 1/4 of the tank.\r\n" );
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document.write( "It means that in 5 + 25 + 25 = 55 minutes from the start, the tank will be filled in full.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved, completed and explained.\r
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\n" ); document.write( "\n" ); document.write( "The meaning of this problem is to give to a person an opportunity to find simple/simplest solution.\r
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\n" ); document.write( "\n" ); document.write( "In such form, it is accessible to any 3th grade young student,
\n" ); document.write( "and it REALLY teaches him (or her) to think in a right way and do not make unnecessary job.\r
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\n" ); document.write( "\n" ); document.write( "It is also good for those older than 70 as an entertainment problem.\r
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\n" ); document.write( "\n" ); document.write( "I would say, it also good as a blitz-test problem at the job-hiring interview
\n" ); document.write( "to determine if a person is able to think creatively.\r
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\n" ); document.write( "\n" ); document.write( "Let god save you from solving it in this way as @josgarithmetic proposes to do it in his post.\r
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\n" ); document.write( "\n" ); document.write( "Doing that way in the interview, you will 100% fail such blitz-test.\r
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