View Full Version : as a teacher of math...I was pwned
Cheesypuff
11-02-2006, 10:55 PM
I can't believe I got pwned by my students on this question.
1 = 5
2 = 25
3 = 125
4 = 625
5 = ?
5 = 1
damn!!!! I was like...5 = 3125. they were like...nope...wrong. the answer is ONE. then I argued with them for a few seconds...and it hit me....CRAP!!! I was just pwned!!!!:disa:
stupid students...
brainsmile
11-02-2006, 10:58 PM
ha ha ha...too funny
RoniMan
11-03-2006, 02:51 AM
lol...i actually give that to my math students.
Burzhui
11-03-2006, 06:02 AM
yea i fell for it :)
DarkFury
11-03-2006, 06:47 AM
I can't believe I got pwned by my students on this question.
1 = 5
2 = 25
3 = 125
4 = 625
5 = ?
5 = 1
damn!!!! I was like...5 = 3125. they were like...nope...wrong. the answer is ONE. then I argued with them for a few seconds...and it hit me....CRAP!!! I was just pwned!!!!:disa:
stupid students...
Technically, both of y'all got pwned with those equations...
Since you didn't include any variables (such as 1x = 5 and so on) then we already know that 1 does not equal 5, but 1 = 1. :D
gwilks98
11-03-2006, 06:51 AM
Technically, both of y'all got pwned with those equations...
Since you didn't include any variables (such as 1x = 5 and so on) then we already know that 1 does not equal 5, but 1 = 1. :D
Lay off him, he teaches at a public skewl.
j/k :D
jstreet
11-03-2006, 07:04 AM
I'm not following :o
ShawnLee
11-03-2006, 07:31 AM
I'm not following :o
Leave it alone law wannabe. Just back off slowly.
jstreet
11-03-2006, 07:35 AM
LOL, true enough ;)
Is it supposed to be that because 1=5, 5=1? Is that the point?
ryan_self
11-03-2006, 07:45 AM
Technically, both of y'all got pwned with those equations...
Since you didn't include any variables (such as 1x = 5 and so on) then we already know that 1 does not equal 5, but 1 = 1. :D
:stupid:
bachviet
11-03-2006, 08:20 AM
I felt for it too. :laugh:
Airencracken
11-03-2006, 09:02 AM
I'm either super smart or super dumb. I said one. :D
MrGreg
11-03-2006, 11:27 AM
I believe 3125 is the best answer, and here is why.
In this case, the symbol "=" represents some function. The function "=" represents in this case clearly is NOT the equality function we all know and love because 1=5 is false with our normal definition. So here "=" means something other than what we are use to.
Now that we've thrown away our preconceived notion of what "=" means, lets look at the evidence we have:
1 = 5
2 = 25
3 = 125
4 = 625
If we want to disambiguate with the common definition of "=", we could rewrite the know facts like this:
f(1):5
f(2):25
f(3):125
f(4):625
We have absolutely no evidence that our new function is symmetric about the line y=-x. (That is we don't know that f(x):y ==> f(y):x) Our old definition of "=" has this property, but we don't know that's the case for this new function.
So we have no reason to believe f(5):1, or 5=1.
We do have 4 data points that suggest f(x):5^x, though. The most reasonable thing to extrapolate, therefore, is that f(5):3125, or 5=3125.
* I realize this whole thing is meant as a joke, but I couldn't resist.
Burzhui
11-03-2006, 12:53 PM
foking nerds
RoniMan
11-03-2006, 01:00 PM
LOL, true enough ;)
Is it supposed to be that because 1=5, 5=1? Is that the point?
yes.
lawyer huh.....?
:P i keed i keed
Thesifer
11-03-2006, 01:05 PM
I believe 3125 is the best answer, and here is why.
In this case, the symbol "=" represents some function. The function "=" represents in this case clearly is NOT the equality function we all know and love because 1=5 is false with our normal definition. So here "=" means something other than what we are use to.
Now that we've thrown away our preconceived notion of what "=" means, lets look at the evidence we have:
1 = 5
2 = 25
3 = 125
4 = 625
If we want to disambiguate with the common definition of "=", we could rewrite the know facts like this:
f(1):5
f(2):25
f(3):125
f(4):625
We have absolutely no evidence that our new function is symmetric about the line y=-x. (That is we don't know that f(x):y ==> f(y):x) Our old definition of "=" has this property, but we don't know that's the case for this new function.
So we have no reason to believe f(5):1, or 5=1.
We do have 4 data points that suggest f(x):5^x, though. The most reasonable thing to extrapolate, therefore, is that f(5):3125, or 5=3125.
* I realize this whole thing is meant as a joke, but I couldn't resist.
:stupid:
Napoleon54
11-03-2006, 01:14 PM
*snip*
...we have no reason to believe f(5):1, or 5=1.
We do have 4 data points that suggest f(x):5^x, though. The most reasonable thing to extrapolate, therefore, is that f(5):3125, or 5=3125.
Wow, very impressive. I thought something was funny about assuming 1=5 ergo 5=1 in this case, but I never would've been able to explain it the way you just did. :bow:
johnnymk
11-03-2006, 01:17 PM
There is nothing to indicate that there is a sequence going on, so 5 does equal 1.
Just like 25 equals 2, 125 equals 3 and 625 equals 4.
If any other number had come up, it would have been irrelevant.
Napoleon54
11-03-2006, 01:29 PM
So then why doesn't 5=5?
Jeffbx
11-03-2006, 01:37 PM
In the expression, the numbers are being treated as both a value & a variable. Therefore I'd argue that both are correct -
5=1 based on the trasitive, given that 1=5; AND 5=3125 based on the progression of the prior values.
However, I guess it all boils down to the fact that it's a funny joke to play on your math teacher and we've now ruined it by analyzing it to death.
MrGreg
11-03-2006, 02:46 PM
There is nothing to indicate that there is a sequence going on, so 5 does equal 1.
Nothing I said depends on it being a sequence. In fact I would argue that's another reason why 3125 is a better solution. You could just as easily answer 6=? or 28734=?
Just like 25 equals 2, 125 equals 3 and 625 equals 4.
5=1 based on the trasitive
You're both assuming the transitive property applies, but that assumption is without basis in this case.
Now if the question had been:
a = e
b = f
c = g
d = h
e = ?
We would think the "=" here is the standard equality operator, which does have the transitive property. And therefor e = a.
So I guess if you treat the set of numbers {1,2,3,4,5,25,125,625} as variable names, then fine, 5=1. But if I was teaching math and my students named variables after integers, there would be a lot of red pen marks on their returned homework.
InfiniteNothing
11-03-2006, 02:55 PM
I can't believe I got pwned by my students on this question.
1 = 5
2 = 25
3 = 125
4 = 625
5 = ?
5= 1 + 4 = 630
RoniMan
11-03-2006, 03:23 PM
However, I guess it all boils down to the fact that it's a funny joke to play on your math teacher and we've now ruined it by analyzing it to death.
:agree:
Napoleon54
11-03-2006, 03:29 PM
Stop it, stop it! You're all gonna give me a brain hernia.
Cheesypuff
11-03-2006, 06:43 PM
wow...you guys rocked up with the explanations...
Houdini
11-03-2006, 11:05 PM
5= 1 + 4 = 630
After reading it twice, that's what I was thinking as well.
As said above, it all depends on what is the agreed meaning of "=" and if a transitive property can be assigned to it.
Otherwise, it's an interesting paradox. Not quite a paradox, but kinda paradoxy.
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