Guess the Number!

bround · Post by **bround** » Sat Feb 14, 2009 12:43 pm

Guess the Number!

like Number + Number = Number

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Mine is:

100 + 1000 = ????
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Hint: in =.... You need to says ????

speegled · Post by **speegled** » Sat Feb 14, 2009 2:50 pm

1100...

√24025=???

Muzozavr · Post by **Muzozavr** » Sat Feb 14, 2009 5:51 pm

155...

(x-a)(x-b)(x-c)...(x-z)=?

Marinus · Post by **Marinus** » Sat Feb 14, 2009 6:46 pm

Muzozavr wrote:(x+a)(x+b)(x+c)...(x+z)=?

I think it isn't possible to write that shorter.

Blast!10 · Post by **Blast!10** » Sat Feb 14, 2009 7:57 pm

Yeah, I don't think enough variables are given away. We need the value of x, probably.

Muzozavr · Post by **Muzozavr** » Sat Feb 14, 2009 11:32 pm

Think outside the box -- there IS a solution!

No, really, there is. It's an old puzzle.

(In case you're confused the expression goes through the entire alphabet. The dots just shorten the writing, that's it.)

Marinus · Post by **Marinus** » Sat Feb 14, 2009 11:34 pm

Yes of course, you used the - sign before, but now you are using the +, so I don't see it.

Muzozavr · Post by **Muzozavr** » Sat Feb 14, 2009 11:56 pm

Sorry, I've mistyped it. Now it's with the minus sign.

Marinus · Post by **Marinus** » Sun Feb 15, 2009 12:01 am

Ok, I thought maybe there was another trick. But now someone else can guess.

mqdar · Post by **mqdar** » Sun Feb 15, 2009 4:59 am

I don't really understand the point of this topic. 100 + 1000 could not be a part of a guessing game. It's just simple Maths.

Muzo, didn't you post that puzzle last year?

Qloof234 · Post by **Qloof234** » Sun Feb 15, 2009 5:15 am

Just a quick example of number guessing:

*The number is between 1 and 20.
*It is an even number.
*There is the same number of digits as the number in the tens place.

*insert a few guesses or so here*

*The number in the ones place is higher than the number in the tens place.

*28*

@Muzo's puzzle: ...

...

I would guess that each letter corresponds to their placement, but I'm not sure...

again...

If it is... Uhhhhh...

Jeez, I honestly don't know.

Muzozavr · Post by **Muzozavr** » Sun Feb 15, 2009 8:31 am

To Qloof234: the puzzle with plus signs was not solvable. It was a typo.
The puzzle with minus signs IS solvable.

And I think I did post it before, but I think it does fit here too.

richmond2010 · Post by **richmond2010** » Sun Feb 15, 2009 9:16 am

I think Muzo’s puzzle concerns algebra?

AJQZC · Post by **AJQZC** » Sun Feb 15, 2009 1:16 pm

Muzozavr wrote:155...

(x-a)(x-b)(x-c)...(x-z)=?

Very simple!
(x-x)(x-a)(x-b)...(x-w)(x-y)(x-z)

=0.

Muzozavr · Post by **Muzozavr** » Sun Feb 15, 2009 2:28 pm

Yes, that was it. Always watch out for (x-x).

Qloof234 · Post by **Qloof234** » Sun Feb 15, 2009 5:42 pm

@Muzo; I was thinking along the lines of negative numbers included, but I was off by a lot as I can see now

What level math is that anyhow?

bround · Post by **bround** » Wed Feb 18, 2009 6:54 pm