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### Math Fun

Posted:

**Thu Dec 27, 2012 7:51 pm**
by **Abstract**

Rules:

Post a math problem that you have the solution to in bold.

For those who want to answer the problem provide your solution in a tab so as not to ruin it for others.

Rules subject to change. PM me if you have anything that should be added or removed or any suggestions for this thread in general.

### Re: Math Fun

Posted:

**Fri Dec 28, 2012 12:04 am**
by **Tralix**

Solve Zeno's paradox about firing an arrow and never being able to hit a moving target by any means necessary and show that it is in fact not a paradox. You may use any form of maths as long as it is logical and constrained by current set, number theories.

Clue: you don't need calculus, in fact all you need is periodicity over time, but it might be easier if you use it.

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 1:07 am**
by **Tralix**

I think I broke this thread. Ok since no one wants to answer the question post another one.

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 2:43 am**
by **captaincrunk**

Tralix wrote:Solve Zeno's paradox about firing an arrow and never being able to hit a moving target by any means necessary and show that it is in fact not a paradox. You may use any form of maths as long as it is logical and constrained by current set, number theories.

Clue: you don't need calculus, in fact all you need is periodicity over time, but it might be easier if you use it.

was it 7?

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 2:47 am**
by **Tralix**

captaincrunk wrote:Tralix wrote:Solve Zeno's paradox about firing an arrow and never being able to hit a moving target by any means necessary and show that it is in fact not a paradox. You may use any form of maths as long as it is logical and constrained by current set, number theories.

Clue: you don't need calculus, in fact all you need is periodicity over time, but it might be easier if you use it.

was it 7?

Was it what?

Let's just move on, no one is interested in the question I asked, whether it was nine or lemming is beside the point.

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 2:59 am**
by **Tralix**

Topology question sequence:

AE FHIK LMN

What letters come next?

It's loosely related to maths, but then isn't everything.

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 12:36 pm**
by **MagsJ**

Tralix wrote:I think I broke this thread. Ok since no one wants to answer the question post another one.

I fear the reason is.. is that you are on many a foe list and therefore they cannot see the question in order to answer it - it's a shame because you have good content..

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 3:10 pm**
by **Tralix**

Magsj wrote:Tralix wrote:I think I broke this thread. Ok since no one wants to answer the question post another one.

I fear the reason is.. is that you are on many a foe list and therefore they cannot see the question in order to answer it - it's a shame because you have good content..

Nah who cares lifes too short to pay any attention to people who don't like you.

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 3:27 pm**
by **Abstract**

I'll have to think on your problem Tralix...

Here is another problem:

What is the next number in this series?

2,3,8,1,5,11,4,9,5,7,2,8,5,7,4,8,1,?

I have a hint if you need one...

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 3:33 pm**
by **Tralix**

Abstract wrote:I'll have to think on your problem Tralix...

Here is another problem:

What is the next number in this series?

2,3,8,1,5,11,4,9,5,7,2,8,5,7,4,8,1,?

The first 6 numbers add up to 34, the second 36, I presume the next six will add up to 38. Even if that's not correct it is technically correct, suspect there are many patterns to that particular configuration of numbers repeated by mathematical function in subtraction and multiplication too.

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 8:26 pm**
by **Abstract**

nope

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 8:30 pm**
by **Tralix**

Abstract wrote:nope

Ah but it is correct though mathematically you cannot fault it. Better to say it is not the answer you have on your card.

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 8:32 pm**
by **captaincrunk**

the next numbers are 5, 6 , and 243. based on tralix's "everyone is right if you look hard enough" fallacy

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 8:40 pm**
by **Tralix**

captaincrunk wrote:the next numbers are 5, 6 , and 243. based on tralix's "everyone is right if you look hard enough" fallacy

I didn't say that any number series could have multiple solutions. I did not say I was correct just technically correct, which of course is the best kind of correct.

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 8:41 pm**
by **Tralix**

Every certain amount of prime numbers are followed by an even non prime as well although I doubt that is correct either.

The next numbers could be 4,2,2 meaning 1st,3rd,5th number adds up to the same as every 2nd,4th,6th etc. Which is also probably not correct.

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 9:59 pm**
by **Abstract**

woops i posted it wrong it should be: 2,4,8,1,5,2,4,1,5,7,2,8,5,7,4,8,1,?

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 10:28 pm**
by **Tralix**

Are the odd numbers palindromes of each other and the even likewise. If so the answer is pretty obvious, if not I shall think on? is the whole thing a palindrome?

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 10:41 pm**
by **Abstract**

Tralix wrote:Are the odd numbers palindromes of each other and the even likewise. If so the answer is pretty obvious, if not I shall think on? is the whole thing a palindrome?

no... i can give you a hint if you want...

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 10:44 pm**
by **Tralix**

Abstract wrote:Tralix wrote:Are the odd numbers palindromes of each other and the even likewise. If so the answer is pretty obvious, if not I shall think on? is the whole thing a palindrome?

no... i can give you a hint if you want...

Nah I hate spoilers, I have never been great at number sequences, its a blind spot for me I will think on.

Any thoughts about my puzzle, I already gave a clue by the way.

AE FHIK LMN..?

It could be 52 then say 7?

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 10:56 pm**
by **Abstract**

I'll have to think on it more i spent a good bit on it this morning and got no where.

### Re: Math Fun

Posted:

**Sat Dec 29, 2012 11:02 pm**
by **Abstract**

The answer to tralix's AE problem is:

### Re: Math Fun

Posted:

**Sun Dec 30, 2012 2:15 am**
by **Tralix**

Abstract wrote:The answer to tralix's AE problem is:

No that is not the next letter in the sequence.

It's about topology so think shape more than sequence, maths can reduce any shape to an equation, but can your mind do the same.

A reminder of the clue in case you want help.

I'm thinking 527 for yours.

### Re: Math Fun

Posted:

**Sun Dec 30, 2012 2:30 am**
by **Abstract**

im pretty sure that works out:

You take the sum of the digits of the numerical representation of the leters and sum them down from two digit numbers etcc...w should work but ill check it out... 15 makes 6... 68911 makes 34 3+4 makes 7 12 13 14 makes 39 3+9 makes 12 makes 3 w is 23 makes 5 plus 3 makes 8...

### Re: Math Fun

Posted:

**Sun Dec 30, 2012 2:31 am**
by **Tralix**

Abstract wrote:im pretty sure that works out:

You take the sum of the digits of the numerical representation of the leters and sum them down from two digit numbers etcc...w should work but ill check it out...

No whilst that may work out it is not the answer, numbers will not help you here topology might.

I don't mean to sound smug at all it took me 5 minutes to get this, and I went through all the things you probably have, but when the solution came was when I stopped thinking linearly about math, and started thinking more about...

### Re: Math Fun

Posted:

**Sun Dec 30, 2012 2:34 am**
by **Abstract**

i edited the tab check it again