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### #1

Posted 15 January 2008 - 10:38 PM

It's absolute value is √29

but if you add 2 to the number...

it's absolute value is √53!

What is the number? (there is only one answer)

### #2

Posted 16 January 2008 - 05:07 AM

I am thinking of a number.

It's absolute value is √29

but if you add 2 to the number...

it's absolute value is √53!

What is the number? (there is only one answer)

Is that the correct interpretation?

*The greatest challenge to any thinker is stating the problem in a way that will allow a solution.*

- Bertrand Russell

### #3

Posted 16 January 2008 - 10:48 PM

and I use the usual definition of absolute value: DISTANCE FROM ZERO

and I was wrong- there are actually 2 solutions. Name them both.

### #4

Posted 17 January 2008 - 01:22 PM

### #5

Posted 17 January 2008 - 10:44 PM

I am thinking of a number.

It's absolute value is √29

but if you add 2 to the number...

it's absolute value is √53!

What is the number? (there is only one answer)

### #6

Posted 17 January 2008 - 11:10 PM

Spoiler for solution

So only one solution...

### #7

Posted 18 January 2008 - 02:53 AM

EDIT: for some reason the square root symbol became a question mark, so I changed it from the square root symbol to 'v'

### #8

Posted 20 January 2008 - 10:22 AM

I usually think of magnitude or modulus of complex numbers.

But absolute value is used also.

*The greatest challenge to any thinker is stating the problem in a way that will allow a solution.*

- Bertrand Russell

### #9

Posted 21 January 2008 - 01:30 AM

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