---- The ultimate MATH enigma thread! ----

[Squirt]

M = -(x+y+.5)/ (x-2y)
Easy shit

Even I know how to do that shit...

[FireVortex]

um wut o_o.

[Squirt]

Q: U have 4 matches put like this. Move one and only one match to make a square


Hint: quare has many meanings

(answer with a pic)[/quote]
AM i right?

Edit: Wait shit I thought it said make a 4 -_-

[Barotix]

I did it first. 4 is a perfect square.

[Squirt]

I did it first. 4 is a perfect square.

Q: U have 4 matches put like this. Move one and only one match to make a square

[piootr]

I did it first. 4 is a perfect square.

Q: U have 4 matches put like this. Move one and only one match to make a square

He only moved one.

[Squirt]

Whaa!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Damn you!

[Da_Realest]

I did it first. 4 is a perfect square.

What? I made a sqaure as well.

[Barotix]

I did it first. 4 is a perfect square.

What? I made a sqaure as well.

Interesting, you used an optical illusion... before my four.

[crazyskwrls]

im pretty sure Da_Realest already got it, i seen that before

no one has solved my puzzle yet

[Da_Realest]

I did it first. 4 is a perfect square.

What? I made a sqaure as well.

Interesting, you used an optical illusion... before my four.

Yea, but I think your answer is the intended answer since the hint seemed to allude to the other meaning of square, a number. I didn't take the hint into account when I was thinking.

[l05tfr33k7]

Totally off-topic:

Barotix. i am so glad that you put that article on your sig. it was a VERY interesting read. mind if i put it in my sig also? spread the word!

[takolin]

well that seems impossible if u dont mind im gonna post a fun one

Spoiler!

using exactly three 3, and any operations +,-,/,*,^....
make all the numbers 1-20

no square cuz square is ^2 and u can only use 3, no celing, floor or approximates
square root is allowed, but dont argue, i got this without using squres


i will demonstrate 3 since its the easiest

1=
2=
3= 3*3/3
4=
5=
6=
7=
8=
9=
10=
11=
12
13=
14=
15=
16=
17
18=
19=
20=

*hint use !
i'll give u guys another hint if no one gets it

It's not that hard.

Spoiler!

1= 3/3
2= 3/3+3/3
3= 3/3+3/3+3/3
4= 3/3+3/3+3/3+3/3

Couldn't be arsed to go all the way to 20 but it's the same repetitive thing.

[NuclearSilo]

Barotix's and Squirt's are the right.
4 is the square of 2

heres how u can do ten
10 = .33(repeating sign) *3

.33 * 3 = 0.999 not 10
3.3 * 3 = 9.9 but u said no aproximation..
quiz fail :|

Enigma #4
Type: Medium

Q1: Use 6 matches to make exactly 4 equilateral triangles. Each triangle's sides has the length of the match.
Q2: Use 6 matches to make 8 equilateral triangles (any size)

(answer with a pic)

[Skayunor]

[[SD]Kratos]

Q1

[NuclearSilo]

Skayunor's 2nd pic is the good one. Kratos's answered the right for the 1st question.

Enigma #5
Type: Easy

This is a fork created by matches. Move only 2 matches to create the same fork, but the balls stay outside of the fork.


(answer with a pic)

[takolin]

1 fork coming up.

It looks a bit funny, but I suck at paint.

[NuclearSilo]

Correct! That was easy anyway

Enigma #6
Type: Easy

A sage undertaking to climb a mountain. To do so, he left the morning at 9am and arrives at the top at 12am. He stays overnight in the refuge and again the following day at 9am. Using the same route in reverse. He is down at 11am.

Q: Is there a place on the road where he cross at the same time two days? How to prove the existence or inexistence of such place?

[[SD]Kratos]

the refuge is that place?

[Pietje]

getting up takes more time then getting down, so he does 1 hour less about it ?

[crazyskwrls]

heres how u can do ten
10 = .33(repeating sign) *3

.33 * 3 = 0.999 not 10
3.3 * 3 = 9.9 but u said no aproximation..
quiz fail :|

i typed too quickly on that .33 thing

its not approximation, its repeating
3.3(repeating forever) *3 =10

takolin, read the rules it says using exactly three 3

[ThiefzV2]

Enigma #T1
Type: Easy

For equation: a^2 + b^2 = c^2

Solutions include: (3, 4, 5) OR (5, 12, 13) OR (7, 24, 25) ... infinity

(3,5,6) works because:
3^2 + 4^2 = 5^2
9 + 16 = 25 == TRUE


Now list a solution for where only integers >0 can be use (1,2,3..) for this equation:

a^3 + b^3 = c^3

First person to list any correct solution wins

Enigma #T2
Type: Easy

Change the roman numerical 9 into a 6 with one stroke:

[[SD]Kratos]

let nuclear post please. else it gets hard to follow whats going on

[Stress]

As for the riddle posted above... (#1 in particular)
[OFF-TOPIC] For math lovers:

Spoiler!

For the fist equation, the general solution is:
x = k*(m^2 - n^2)
y = 2*k*m*n
z = k(m^2+n^2)

Where k, m, n take all integer (tangible values, you can avoid 0 from the start) values, and, of course, x and y can be interchanged. For example, set k = 1; m = 2; n = 1; and you obtain x = 3; y = 4; z = 5;

As for your first riddle, it's impossible. Fermat's great theorem. x ^ k + y ^ k = z ^ k has no soultion in integer numbers for k>2.

[Love]

ok i dare you to solve this

2+2=?

and if you were able to solve that

2x2=?

now what

[Barotix]

Answer to silo: No, he never crosses it because he arrived at the final destination earlier. If we're assuming constant V then he never crosses the same path twice at the same time.

[ImmortalKiller]

heres how u can do ten
10 = .33(repeating sign) *3

.33 * 3 = 0.999 not 10
3.3 * 3 = 9.9 but u said no aproximation..
quiz fail :|

1/9 = .1 Repeating
2/9 = .2 Repeating
3/9 = .3 Repeating
4/9 = .4 Repeating
...
8/9 = .8 Repeating
9/9 = .9 Repeating

This is such an arguable point.... but .9 Repeating CAN equal one ;D

[NuclearSilo]

Answer to silo: No, he never crosses it because he arrived at the final destination earlier. If we're assuming constant V then he never crosses the same path twice at the same time.

Uhm, it looks like all of u has confused with the question. The answer is:

- Yes, the place where he crossed at the same time exist.
- To prove the existence: have 2 persons, one go up, one go down at the same time 9am. Because they take the same route but only in reverse way, therefore they'll certainly meet each other. Where they meet is the same time in the day (look the watch).


@Thiefz #2 Q: Cut the number by half, u'll have 6 in reverse.

@All other: plz wait for other question to be answered before posting a new one, otherwise ppl will lost the track.


Enigma #7
Type: Easy

Link these 9 points using exactly 4 straight line, without raising the pen.

(answer with a pic)

[[SD]Kratos]

i request a hint :o