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Water Tank Puzzle......

This is a discussion on Water Tank Puzzle...... within the Mathematical Puzzles forums, part of the Brain Gym category; Hi Friends, Water flows into a tank at a rate of 1 gallon per second. Water leaves the tank at a rate of 1 gallon per second for each 100 ...

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Old 06-29-2009
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Water Tank Puzzle......

Hi Friends,

Water flows into a tank at a rate of 1 gallon per second.

Water leaves the tank at a rate of 1 gallon per second for each 100 gallons in the tank.


The tank is initially empty.

Then guys....

How long will it take for the tank to fill with 50 gallons of water?

Thanks & Regards,
Riju
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Old 07-02-2009
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Re: Water Tank Puzzle......

The answer is 69.3 sec. Use partial differentiation to solve it.
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Old 07-02-2009
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Re: Water Tank Puzzle......

Hi friends,

Yes.. The answer is 69.3 sec..

Thanks,
Riju.
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