Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

Login

Username

Password

Not registered yet?

#951 2012-11-05 01:17:32

bobbym
Administrator

Offline

Re: Bafflers?

Hi;

In order for me to check the answers I will need the positions of the poles too. Remember the distance between the poles count too!


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#952 2012-11-05 01:22:11

phrontister
Real Member

Online

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
 

#953 2012-11-05 01:30:27

bobbym
Administrator

Offline

Re: Bafflers?

Hi phrontister;



Hi anonimnystefy;

I guess you are saying that the biggest pole is 484 ft high the ant travels 2 * 484 +1 =969 ft and then the next pole is at least 485 ft. away so we have 969 + 485 = 1454 and you can arbitrarily fit 6 small poles in the remaining  114 ft.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#954 2012-11-05 03:56:42

anonimnystefy
Real Member

Offline

Re: Bafflers?

Hi bobbym

Why would it need to be 485 ft away?

But, yeah, that's the idea...


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
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

#955 2012-11-05 05:04:09

bobbym
Administrator

Offline

Re: Bafflers?

Hi anonimnystefy;

The next pole always needs to be further away than the height of the pole before it.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#956 2012-11-05 08:34:59

anonimnystefy
Real Member

Offline

Re: Bafflers?

Yeah, but it could be an yoctometer further away than the height of the pole.


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
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

#957 2012-11-05 09:29:20

bobbym
Administrator

Offline

Re: Bafflers?

That is true, but to simplify calculations I used an integer.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#958 2012-11-05 09:30:19

anonimnystefy
Real Member

Offline

Re: Bafflers?

Well, you didn't state that the distance must be an integer, so you cannot assume it to be true...


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
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

#959 2012-11-05 09:32:03

bobbym
Administrator

Offline

Re: Bafflers?

I did not say it was. But it could be true! Anyway it was for illustration only.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#960 2012-11-05 09:33:43

anonimnystefy
Real Member

Offline

Re: Bafflers?

But then my solution is correct!


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
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

#961 2012-11-05 09:37:13

bobbym
Administrator

Offline

Re: Bafflers?

Yes, I would think it is true.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#962 2012-11-05 09:42:42

anonimnystefy
Real Member

Offline

Re: Bafflers?

Okay then. Thanks for the problem. I just don't understand why you made it so that it has so many solutions (knowing mine and phro's aren't the only ones...)


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
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

#963 2012-11-05 09:44:57

bobbym
Administrator

Offline

Re: Bafflers?

Bafflers are not that tough of a problem. Like in the real world, you never know about a problem until you solve it.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#964 2012-11-05 09:46:05

sms37
Novice

Offline

Re: Bafflers?

There is a collection of 12 balls of same color and weight except one ball of different weight. By using only a weighing balance ( with two pans) without weights,find the odd ball from the lot.Also determine if the odd ball is heavier or lighter than the rest.Only three weighments are allowed.

 

#965 2012-11-05 09:46:17

anonimnystefy
Real Member

Offline

Re: Bafflers?

Ok... But we still need more expectation problems...


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
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

#966 2012-11-05 09:49:51

anonimnystefy
Real Member

Offline

Re: Bafflers?

sms37 wrote:

There is a collection of 12 balls of same color and weight except one ball of different weight. By using only a weighing balance ( with two pans) without weights,find the odd ball from the lot.Also determine if the odd ball is heavier or lighter than the rest.Only three weighments are allowed.

Do you need help with that or are you posing it as a problem?

In either case,

is a solution.


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
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

#967 2012-11-05 09:51:50

bobbym
Administrator

Offline

Re: Bafflers?

I know everything about expectation, or at least I did. I can give you plenty of them if you want to learn it. Start a new thread.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#968 2012-11-05 09:53:19

anonimnystefy
Real Member

Offline

Re: Bafflers?

Okay.

Last edited by anonimnystefy (2012-11-05 10:05:01)


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
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

#969 2012-11-05 10:02:54

bobbym
Administrator

Offline

Re: Bafflers?

But be aware that they are generally very tough.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#970 2012-11-05 10:05:47

anonimnystefy
Real Member

Offline

Re: Bafflers?

Better working on tough problems than on ones I cn solve easily, eh?


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
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

#971 2012-11-05 10:08:37

bobbym
Administrator

Offline

Re: Bafflers?

Hmmmm, well that sounds like pretty tough talk but if I remember correctly there is still that 1000 die thrown problem...


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#972 2012-11-05 10:10:45

anonimnystefy
Real Member

Offline

Re: Bafflers?

So? It doesn't mean that I didn't gain anything from working on that problem...


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
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

#973 2012-11-05 10:14:16

bobbym
Administrator

Offline

Re: Bafflers?

I know... But before you took a trip in to expectation land it would have been more productive to have learned the techniques of solving that one.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#974 2012-11-05 10:20:33

anonimnystefy
Real Member

Offline

Re: Bafflers?

We can do that as well in the gf thread.


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
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

#975 2012-11-05 10:23:53

bobbym
Administrator

Offline

Re: Bafflers?

Though it is being set up using gf's it is best solved by other means.

Do you remember the Colonels major criticism of bobbym, well pappym said another one? Between the two you could see how he was doomed to failure before he even started.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

Board footer

Powered by FluxBB