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Volume

 
 
dionsen
 
Reply Sun 1 Apr, 2012 09:43 pm
If a tank takes two hours to fill and three hours to empty, how long would it take for the tank to overflow when both outlets are open.
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Type: Question • Score: 0 • Views: 1,178 • Replies: 3
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fresco
 
  1  
Reply Mon 2 Apr, 2012 12:33 am
@dionsen,
Hint: Let the tank have volume 6 gallons.
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raprap
 
  1  
Reply Mon 2 Apr, 2012 02:00 am
@dionsen,
Tank volume isn't necessary to answer the question.
1/2-1/3=1/6=1/t
so t=6

Six Hours

If the tank volume is 6 gallons, the flow rates are -- in 3 gal/he. out 2 gal/hr.
fresco
 
  1  
Reply Mon 2 Apr, 2012 05:22 am
@raprap,
Quote:
Tank volume isn't necessary to answer the question.

Of course not, but the best way to get a student to think for himself is to avoid algebra. We try not to do homework here.
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