Two 2s

rgoudie

Posers and Puzzles

29 Jul 04

rgoudie

Joined: 08 Dec 03
Moves: 3140

29 Jul 04

Using only two 2's and any combination of mathematical signs, symbols and functions can you make 5?

-Ray.

royalchicken

CHAOS GHOST!!!

Elsewhere

Joined: 29 Nov 02
Moves: 17317

30 Jul 04

Originally posted by rgoudie
Using only two 2's and any combination of mathematical signs, symbols and functions can you make 5?

-Ray.

2 + 2 + 1.

kody magic

in complete

Joined: 21 Jul 01
Moves: 23852

30 Jul 04

Originally posted by rgoudie
Using only two 2's and any combination of mathematical signs, symbols and functions can you make 5?

-Ray.

a = 2/2
5 = a+a+a+a+a

rgoudie

Joined: 08 Dec 03
Moves: 3140

30 Jul 04

Originally posted by kody magic
a = 2/2
5 = a+a+a+a+a

The correct solution will use no other digits other than two 2s. You may use any mathematical symbols, which do not include any algebraic variables. This is not a trick question.

-Ray.

~~Cribs~~

Moderately Offensive

All up in yo' face!

Joined: 14 Oct 03
Moves: 28590

30 Jul 04

2 + 2 + e/e

rgoudie

Joined: 08 Dec 03
Moves: 3140

30 Jul 04

Originally posted by Cribs
2 + 2 + e/e

I must be more precise. 🙂

Use only two 2s as well as mathematical symbols and modifiers. No lettered-quantites are required.

-Ray.

~~Cribs~~

Moderately Offensive

All up in yo' face!

Joined: 14 Oct 03
Moves: 28590

30 Jul 04

1 edit

2 + 2 + |{ {} }|

That is, 4 plus the size of the set whose single member is the empty set.

rgoudie

Joined: 08 Dec 03
Moves: 3140

30 Jul 04

Originally posted by Cribs
2 + 2 + |{ {} }|

That is, 4 plus the size of the set whose single member is the empty set.

Looks valid. There is at least one more solution.

-Ray.

psychopath42

Green Slime

Thieve's Guild

Joined: 17 Mar 04
Moves: 17524

30 Jul 04

This post is unavailable

Please refer to our posting guidelines

psychopath42

Green Slime

Thieve's Guild

Joined: 17 Mar 04
Moves: 17524

30 Jul 04

Originally posted by rgoudie
Using only two 2's and any combination of mathematical signs, symbols and functions can you make 5?

-Ray.

ceil( sqrt( 22 ) )

royalchicken

CHAOS GHOST!!!

Elsewhere

Joined: 29 Nov 02
Moves: 17317

30 Jul 04

Do the axiomatic set theory thing:

5 = (2^2)'

rgoudie

Joined: 08 Dec 03
Moves: 3140

30 Jul 04

Originally posted by psychopath42
ceil( sqrt( 22 ) )

Not the particular solution that I had in mind, but I'll accept your solution! 🙂

-Ray.

!~TONY~!

1...c5!

Your Kingside

Joined: 28 Sep 01
Moves: 40665

30 Jul 04

1 edit

Wow.....I was about to post something but I was using more than 2 2's....I was wondering why noone had said what I was posting already!

rgoudie

Joined: 08 Dec 03
Moves: 3140

30 Jul 04

Originally posted by !~TONY~!
what about 2 + 2 + (2/2) ?

The problem wit this solution is that the digit 2 appears four times.

-Ray.

!~TONY~!

1...c5!

Your Kingside

Joined: 28 Sep 01
Moves: 40665

30 Jul 04

yessir....hence the edit above.....I thought that was way too easy! I am sitting here wondering why all these people are going deep into math......I SUCK!