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#1 2012-02-29 20:52:24
- bobbym
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Bafflers?
Hi;
Due to increased traffic in my other two problem threads I have started this one. It will contain problems that appear difficult but are not. Or maybe, just not as difficult as the other two threads.
Baffler #1
An opaque jar contains100 marbles. 50 of them are blue and 50 are white. 25 marbles are picked out of the jar at random. They are discarded and 25 blue marbles are put into the jar. This process is done 9 more times. What percentage of white marbles remains?
A says) 4%
B says) About 2.8%
C says) I agree with either (A or B) or (A and B) I am not sure.
D says) C is right.
E says) B is close but he does not have an exact answer. I have a method.
B says) I have a method now!
Who is closest and can you find E's method?
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#2 2012-02-29 22:26:33
- phrontister
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Re: Bafflers?
Hi Bobby,
EDIT:
Just found a ...not sure if it's E's, though.
Last edited by phrontister (2012-02-29 22:33:09)
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
#3 2012-02-29 23:04:30
- bobbym
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Re: Bafflers?
Hi phrontister;
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#4 2012-03-01 12:43:05
- phrontister
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Re: Bafflers?
Hi Bobby,
Last edited by phrontister (2012-03-01 13:34:42)
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
#5 2012-03-01 16:29:16
- bobbym
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Re: Bafflers?
Hi phrontister;
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#6 2012-03-01 17:08:19
- phrontister
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Re: Bafflers?
Hi Bobby,
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
#7 2012-03-01 17:18:21
- bobbym
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Re: Bafflers?
Hi;
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#8 2012-03-01 17:36:29
- anonimnystefy
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Re: Bafflers?
Hi bobbym
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#9 2012-03-01 17:39:30
- bobbym
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Re: Bafflers?
It is roughly 7:37 AM for you. Is this not a little early for you?
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#10 2012-03-01 17:43:39
- anonimnystefy
- Real Member
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Re: Bafflers?
Hi bobbym
You don't like seeing me online? 
Anyway, my classes start a little later for me today, so I am able to go here with wifi on my phone. 
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#11 2012-03-01 17:44:29
- bobbym
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Re: Bafflers?
I do not mind at all. But it is a change in your habits.
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#12 2012-03-01 17:47:16
- anonimnystefy
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Re: Bafflers?
Hi bobbym
It's not.I usually wake up at 6.30 when I go to school I'm the morning
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#13 2012-03-01 17:48:04
- phrontister
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Re: Bafflers?
Hi Bobby,
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
#14 2012-03-01 17:48:51
- bobbym
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Re: Bafflers?
6:30 AM was a little early for me.
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#15 2012-03-01 17:51:27
- anonimnystefy
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Re: Bafflers?
So were you ever late for school?
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#16 2012-03-01 17:53:06
- bobbym
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Re: Bafflers?
Hi phrontister;
I understand perfectly. It is okay to tell all your ideas and it is welcomed by me. I also thank you for looking at the problem.
I was never late for school.
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#17 2012-03-01 17:55:38
- anonimnystefy
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Re: Bafflers?
Hi bobbym
That's a little farfetched (if that word can be used here). Never is a strong word, unlike ever.
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#18 2012-03-01 17:57:30
- bobbym
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Re: Bafflers?
As farfetched as it may seem to you nevertheless it is the truth.
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#19 2012-03-01 18:02:25
- anonimnystefy
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Re: Bafflers?
If you say so.
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#20 2012-03-01 18:05:21
- bobbym
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Re: Bafflers?
I had trouble showing up and when I did, it was trouble but I was never late.
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#21 2012-03-01 18:07:23
- anonimnystefy
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Re: Bafflers?
So you were always either on time, or didn't show up at all?
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#22 2012-03-01 22:17:05
- bobbym
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Re: Bafflers?
That is correct! Some classes were so delightful I would never miss them. Others bored me to tears.
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#23 2012-03-03 00:06:44
- gAr
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Re: Bafflers?
Hi bobbym,
"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense" - Buddha?
"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."
#24 2012-03-03 00:18:49
- bobbym
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Re: Bafflers?
Hi gAr;
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#25 2012-03-03 00:26:12
- gAr
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Re: Bafflers?
Hi bobbym,
Thanks for reminding me of the problem, I almost forgot the solution.
"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense" - Buddha?
"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."