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#1 2008-01-28 01:58:34
- umbros
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- Registered: 2008-01-27
- Posts: 8
The Problem about Bacteria
Hello, everyone!
THE PROBLEM:
There are bacteria in a glass. In one second each of bacteria is gone divided in two, after that each of appeared bacteria in one second gone divided in two etc. In one minute glass is full.
In what time glass was half-filled?
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My Blog: Terrific Math!
Last edited by umbros (2008-01-30 21:24:56)
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#2 2008-01-28 07:15:05
- John E. Franklin
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- Registered: 2005-08-29
- Posts: 3,588
Re: The Problem about Bacteria
igloo myrtilles fourmis
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#3 2008-01-28 20:20:34
- umbros
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- Registered: 2008-01-27
- Posts: 8
Re: The Problem about Bacteria
Yes, your answer is right.
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My Blog: Terrific Math!
Last edited by umbros (2008-01-30 21:26:04)
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#4 2008-01-30 07:49:45
- Zach
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- Registered: 2005-03-23
- Posts: 2,075
Re: The Problem about Bacteria
The glass is never half-full, it is only half-empty at 59 seconds.
Boy let me tell you what:
I bet you didn't know it, but I'm a fiddle player too.
And if you'd care to take a dare, I'll make a bet with you.
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#5 2008-01-30 18:49:16
- Devantè
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- Registered: 2006-07-14
- Posts: 6,400
Re: The Problem about Bacteria
Hehe, that's clever. I had to check the answer I got before I realised that I was right. 
I like these kinds of problems.
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#6 2008-01-30 21:38:57
- NullRoot
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- Registered: 2007-11-19
- Posts: 162
Re: The Problem about Bacteria
I was never happy with the supposedly philosophical question "Is the glass half empty or half full?".
It depends on the context really. If the process of filling the glass gets it to that point, then it's half full. If you empty the water from the glass to get to that point, then it's half empty. If the glass just suddenly existed with half it's potential volume of water in it, then I think the better question is "Where did it come from and why is it here?" 
Trillian: Five to one against and falling. Four to one against and falling Three to one, two, one. Probability factor of one to one. We have normality. I repeat, we have normality. Anything you still cant cope with is therefore your own problem.
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