Pages

4/7/11

Discuss

Comments (245)

Best Response
4/7/11

I've learned something valuable from this thread. You all are a bunch of cunts with very little social skills.

This question was poorly written and can easily confuse. It isn't like someone cannot add 2+2. Calling people retards or fucking morons will get you no where, regardless of how correct you are.

The WSO Advantage - Investment Banking

Financial Modeling Training

IB Templates, M&A, LBO, Valuation +

IB Interview Prep Pack

30,000+ sold & REAL questions.

Resume Help from Actual IB Pros

Land More IB Interviews.

Find Your Perfect IB Mentor

Realistic IB Mock Interviews.

4/7/11

(e^(i*pi))/(-0.5)

-MBP

4/7/11

288 but my conversion process formulated from a vector application has it at 3.50
Amidoingitrite? U tell me. Umadbrah?

In reply to YourWorstEnemy
4/7/11
YourWorstEnemy:

288 but my conversion process formulated from a vector application has it at 3.50
Amidoingitrite? U tell me. Umadbrah?

in.

4/7/11
4/7/11

This isn't funny or interesting. Why is it here?

One of those lights, slightly brighter than the rest, will be my wingtip passing over.

4/7/11

The way you wrote it, 288.

Is this a troll, or was this an interview question? I don't get this post to be honest.

In reply to manbearpig
4/7/11
manbearpig:

(e^(i*pi))/(-0.5)

That's a pretty clever formulation, though, I like it.

One of those lights, slightly brighter than the rest, will be my wingtip passing over.

In reply to 2x2Matrix
4/7/11
2x2Matrix:

This isn't funny or interesting. Why is it here?

To see if you so called "wall street geniuses" have the brain power to solve a simple mathematics equation.

4/7/11

Who the fuck uses the fucking "/" symbol when writing terms?

4/7/11

I saw this on Bodybuilding.com this morning...
http://forum.bodybuilding.com/showthread.php?t=133...

The mods closed it at page 84... a poll showed that 1500 (the slim majority) thought the answer is 2.

4/7/11

Bodybuiding forum no wonder....actually didn't realize riods affected brain power...

The answer to your question is 1) network 2) get involved 3) beef up your resume 4) repeat -happypantsmcgee

WSO is not your personal search function.

In reply to Barcadia
4/7/11
Barcadia:

I saw this on Bodybuilding.com this morning...
http://forum.bodybuilding.com/showthread.php?t=133...

The mods closed it at page 84... a poll showed that 1500 (the slim majority) thought the answer is 2.

What is going on in our schools? I think about the "Jaywalker" segment on Leno, but I dismiss those people as random idiots. But to actually get a majority out of a 3000+ sample size...words fail me.

I mean, yeah, those are bodybuilding forums, but I wouldn't expect anything that bad. Is this how all those ridiculous supplements are sold?

4/7/11

the answer is 288, though for some reason people are initially confused by how it is written and think the 2 is part of the brackets. coincidentally, i guarantee nobody would get it wrong if it was written like this:

48/2*(9+3)

4/7/11

Silly hoes need to brush up on order of operations.

4/7/11

no one writes divide sign like that, why not do

48/2*12 = 288

or you mean 48/ (2*12) = 2

4/7/11

^Yeah, it's 2.

I win here, I win there...

4/7/11

I hope both of you are joking...

The answer to your question is 1) network 2) get involved 3) beef up your resume 4) repeat -happypantsmcgee

WSO is not your personal search function.

4/7/11
4/7/11

LOL AT ALL THE PEOPLE SAYING 288. how the fuck do yo not know simeple order of operations. its clearly 2...

"Look, you're my best friend, so don't take this the wrong way. In twenty years, if you're still livin' here, comin' over to my house to watch the Patriots games, still workin' construction, I'll fuckin' kill you. That's not a threat, that's a fact.

4/7/11
4/7/11

Order of operations is easy to forget I suppose

4/7/11

I cant believe some of you think that is 288....

In reply to FutureBanker09
4/7/11
FutureBanker09:

PEMDAS it's 2

ummm.... parentheses exponents multiplication division addition subtraction... with this how did you get 2?

also read my avatar icon.... It talks about your math skills

The answer to your question is 1) network 2) get involved 3) beef up your resume 4) repeat -happypantsmcgee

WSO is not your personal search function.

4/7/11

288.
Obviously you do the (3+9) first because it's in the parenthesis, giving you:

48/2(12) which can be rewritten as 48/2*12

Since / and * are the same in order of operations, you go from left to right so 48/2*12 = 24*12 = 288.

Money Never Sleeps? More like Money Never SUCKS amirite?!?!?!?

In reply to Will Hunting
4/7/11
Will Hunting:

LOL AT ALL THE PEOPLE SAYING 288. how the fuck do yo not know simeple order of operations. its clearly 2...

Please change your name. You are retarded.

Everyone who is a dumbass just got monkey shit thrown at them.

The WSO Advantage - Investment Banking

Financial Modeling Training

IB Templates, M&A, LBO, Valuation +

IB Interview Prep Pack

30,000+ sold & REAL questions.

Resume Help from Actual IB Pros

Land More IB Interviews.

Find Your Perfect IB Mentor

Realistic IB Mock Interviews.

4/7/11

hahahahahah its 288....

PEMDAS isnt set in stone; multiplication doesn't always come before division, it depends on the order found in the problem

4/7/11

It is 2.

The way it is written is confusing, if it were written appropriately it would look like this:

48
--------- = 2
2(9+3)

4/7/11

Some of you guys might actually be retarded you realize that 2 *12 is a quantity you cant divide the two then multiply by 12.

4/7/11

For all of you arguing 2 instead of 288 because of PEMDAS, keep in mind that PEMDAS implies that you perform the operations WITHIN the parenthesis before anything else. When you have something like 2(12) on the other hand, it is the equivalent of 2*12 and does not take priority over divisions or other multiplications.

Money Never Sleeps? More like Money Never SUCKS amirite?!?!?!?

4/7/11

When you have 2*12 that is a quantity you divide that entire thing into 48. Look 48/24 is the same thing as 48/12*2

4/7/11

black financier you might want to look at your own icon

4/7/11

I think the people who are writing 2 are just kidding around. I don't think anybody here really believes its 2.

In reply to future-ib
4/7/11
future-ib:

When you have 2*12 that is a quantity you divide that entire thing into 48. Look 48/24 is the same thing as 48/12*2

48/24 = 48/(12*2) but NOT (48/12)*2.

Money Never Sleeps? More like Money Never SUCKS amirite?!?!?!?

4/7/11

seriously?

48/2(9+3) is an equivalent formulation to 48/2x...

HINT: the answer is not 24x

shit like this makes me wish I were a trader...

In reply to absinthe
4/7/11
absinthe:
Will Hunting:

LOL AT ALL THE PEOPLE SAYING 288. how the fuck do yo not know simeple order of operations. its clearly 2...

Please change your name. You are retarded.

Everyone who is a dumbass just got monkey shit thrown at them.

lol - owned.

In reply to dmackorth
4/7/11
dmackorth:

It is 2.

The way it is written is confusing, if it were written appropriately it would look like this:

48
--------- = 2
2(9+3)

Lmao you can't just change the way its written because you don't agree with it.

The answer to your question is 1) network 2) get involved 3) beef up your resume 4) repeat -happypantsmcgee

WSO is not your personal search function.

4/7/11

From a children's math website: http://www.mathgoodies.com/lessons/vol7/order_oper...

Rule 1: First perform any calculations **INSIDE** parentheses.
Rule 2: Next perform all multiplications and divisions, working from left to right.
Rule 3: Lastly, perform all additions and subtractions, working from left to right.

Solidarity, you bring up a good point, but I'm sticking to my guns here. While 48/2x is not 24x, 48/2(x) is a little more ambiguous since you could argue that it is the equivalent of 48/2*x.

Money Never Sleeps? More like Money Never SUCKS amirite?!?!?!?

In reply to future-ib
4/7/11
future-ib:

black financier you might want to look at your own icon

You think the answer is 2 you are an idiot and your math is turrible. 288. learn basic 3rd grade math. well maybe 4th.
http://www.wolframalpha.com/input/?i=48/2(9%2B3)&t=macw01

The answer to your question is 1) network 2) get involved 3) beef up your resume 4) repeat -happypantsmcgee

WSO is not your personal search function.

4/7/11

The answer is 288. The order of operation reads right to left for MD and AS - one does not have priority over the other.

In reply to Solidarity
4/7/11
Solidarity:

seriously?

48/2(9+3) is an equivalent formulation to 48/2x...

HINT: the answer is not 24x

shit like this makes me wish I were a trader...

48/2(9+3) not 48/(2(9+3))

The answer to your question is 1) network 2) get involved 3) beef up your resume 4) repeat -happypantsmcgee

WSO is not your personal search function.

4/7/11

I love the controversy this is igniting. Great post OP.

Money Never Sleeps? More like Money Never SUCKS amirite?!?!?!?

4/7/11

^ Haha, yeah seriously...

This really shouldn't need to be typed out and explained, but it seems some people here need to be schooled.

PEMDAS or BEDMAS where division and multiplication share the same order (whichever comes first) and similarly addition and subtraction share the same order (last) pending on whichever comes first in the equation.

48/2(9+3)

Step 1: (9+3) = 12 (bracket)
Step 2: 48/2 = 24 Division comes before multiplication because it's shown earlier in the equation
Step 3: 24(12) = 288

Seriously, why the hell are we discussing grade school math here?

4/7/11

Its 288. Order of ops. Honestly this is just poorly written.

Confusion breeds contempt. Evidenced by this thread.

looking for that pick-me-up to power through an all-nighter?
4/7/11
4/7/11

Order of operations. "Pemdas" my nukka.

And I'm not even back office, im acct - im not even IN the office........ throwback question to alg 2 & trig soph year of hs.

In reply to Solidarity
4/7/11
Solidarity:

seriously?

48/2(9+3) is an equivalent formulation to 48/2x...

HINT: the answer is not 24x

shit like this makes me wish I were a trader...

You're not a trader for a reason.

In reply to Kanon
4/7/11
Kanon:
absinthe:
Will Hunting:

LOL AT ALL THE PEOPLE SAYING 288. how the fuck do yo not know simeple order of operations. its clearly 2...

Please change your name. You are retarded.

Everyone who is a dumbass just got monkey shit thrown at them.

lol - owned.

Please change your name to Chuckie Sullivan. It's more fitting.

I'm going to use this as an interview question. When an engineer gets it wrong, I'm going to laugh his ass out the door.

4/7/11

Agree with the people saying this is written ambiguously. If you are going to put the divide symbol between the 48 and the 2 you should toput the multiplcation symbol between the 2 and the (

4/7/11

Just so those of you who think its 2 don't feel dumb its being argued all over the internet right now.... comical.

The answer to your question is 1) network 2) get involved 3) beef up your resume 4) repeat -happypantsmcgee

WSO is not your personal search function.

4/7/11

How sad...

Anyway, those still in denial and not willing to accept the rules of order of ops, throw '=48/2(9+3)' in excel

In reply to Kanon
4/7/11
Kanon:

How sad...

Anyway, those still in denial and not willing to accept the rules of order of ops, throw '=48/2(9+3)' in excel

sure, order of ops but as written implies 48/(2x) rather than 48/2*x

either way it's not a big deal

In reply to Kanon
4/7/11
Kanon:

How sad...

Anyway, those still in denial and not willing to accept the rules of order of ops, throw '=48/2(9+3)' in excel

Go ahead and plug it into excel. It'll show you this error:

Microsoft Office Excel found an error in the formula you entered. Do you want to accept the correction proposed below?

=48/2*(9+3)

Like I said, the question was very poorly written. It has nothing to do with order of operations here. You can interpret the question in both ways.

-MBP

4/7/11

288.

easy to get confused, but think of it this way
48/2(9+3) => 48/2*12

if you don't believe it type it on a scientific calculator and see.

In reply to manbearpig
4/7/11
manbearpig:
Kanon:

How sad...

Anyway, those still in denial and not willing to accept the rules of order of ops, throw '=48/2(9+3)' in excel

Go ahead and plug it into excel. It'll show you this error:

Microsoft Office Excel found an error in the formula you entered. Do you want to accept the correction proposed below?

=48/2*(9+3)

Like I said, the question was very poorly written. It has nothing to do with order of operations here. You can interpret the question in both ways.

Excel does that because it is not programmed to interpret a number enclosed in parentheses as a factor. That said, the order of operations is not open to debate just because a software app can't interpret the syntax.

4/7/11

MBP - that's my point though. Yes the equation is poorly written, but it's an accepted fact that when you write something like y(z) it means y x z. And excel while not programmed to interpret enclosed numbers as a factor as whateverittakes said above, it recognizes that y(z) is generally interpreted as y x z and it makes the fix after giving you the error message.

The original equation 48/2(9+3) is 48/2*(9+3) NOT 48/(2(9+3)). The 2(9+3) is just a lazier version of 2*(9+3).

4/7/11

48 / 2x =
a. 24/x
b. 24x

Discuss

4/7/11

It's not written ambiguously. 48/2*12= (48/2)*12, and not 48/(2*12)
plug it into freaking excel without parentheses and see what you get

More is good, all is better

4/7/11

Ok, my entire point is that if there is no consistency in the way a question is formulated, regardless of how simple it is, there is room for interpretation. I can tell you that based on the way the question is written, if I interpret it to mean 48/2x, where x = 9+3, then I'm not wrong. If I interpret it to mean 48/2*x, then I'm still not wrong. I can even interpret y(z) to be some completely strange group action if I want, or that we are in a finite field of order 277, in which case the answer most certainly is not 288.

If you want common sense to apply to the solution, you need to write the question with a bit of common sense. Otherwise, you need to spell out all of your assumptions in the question.

-MBP

4/7/11

Those arguing 288 might find this interesting

Date: 02/13/2000 at 13:59:53
From: Jerome Breitenbach
Subject: Order of Arithmetic Operations

Alas, my search for an "authority" on this matter has been nearly
fruitless. The closest thing I have found is the convention used by
the _Mathematical Reviews_ of the American Mathematical Society (AMS),
at Mathematical Reviews Database - Guide for Reviewers
http://www.ams.org/authors/guide-reviewers.html

that "multiplication indicated by juxtaposition is carried out before
division." Thus, in general, for any variables a, b and c, we would
have a/bc = a/(bc) (assuming, of course, that b and c are nonzero).
Indeed, this convention is consistent with what I have seen in many
mathematical books at various levels;

Source: http://mathforum.org/library/drmath/view/57021.html

In reply to TNA
4/7/11
ANT:

I've learned something valuable from this thread. You all are a bunch of cunts with very little social skills.

This question was poorly written and can easily confuse. It isn't like someone cannot add 2+2. Calling people retards or fucking morons will get you no where, regardless of how correct you are.

Thank you. My point entirely.

-MBP

4/7/11

I think this thread just proved a lot of bankers are just as stupid as the rest of the population.

"The power of accurate observation is commonly called cynicism by those who have not got it." - George Bernard Shaw

In reply to LeveragedTiger
4/7/11
jmayhem:

I think this thread just proved a lot of bankers are just as stupid as the rest of the population.

I would argue that they're dumber than everyone else. Based on this intellectual performance.

-MBP

4/7/11

I'm confused as to how you find this poorly written, (9+3) does not equal /12/ or 12, but (12), as in a value to be multiplied. Making it 48 / 2 (12), then 24 (12), then 288.

Either way, I agree with ANT. Can't believe you guys are calling each other retards over a stupid math problem. Hah.

People like Coldplay and voted for the Nazis, you can't trust people Jeremy

4/7/11

288

"I'm tapped out Marv. American Express has got a hit man lookin' for me." - Bud Fox

4/7/11

I have proof the answer is 288...
type it into an equation in excel... amirite?

Went from a poetry major to finance... funny how life works isn't it?

In reply to Jorgé
4/7/11
Jorge:

I'm confused as to how you find this poorly written, (9+3) does not equal /12/ or 12, but (12), as in a value to be multiplied. Making it 48 / 2 (12), then 24 (12), then 288.

Either way, I agree with ANT. Can't believe you guys are calling each other retards over a stupid math problem. Hah.

Please read my earlier post. I explain the answer to your question.

-MBP

4/7/11

I don't think there is any question that this is the greatest thread in WSO history.

Order of operations:
Rule 1: First perform any calculations inside parentheses.
Rule 2: Next perform all multiplications and divisions, working from left to right.
Rule 3: Lastly, perform all additions and subtractions, working from left to right.

Therefore,
1. (9+3) = 12
2. 48/2 = 24, 24(12) = 288
3. None left

Answer is 288, based on the way the OP wrote the equation. End of story.

Sometimes I go about in pity for myself, and all the while a great wind carries me across the sky
In reply to Going Concern
4/7/11
Going Concern:

I don't think there is any question that this is the greatest thread in WSO history.

Order of operations:
Rule 1: First perform any calculations inside parentheses.
Rule 2: Next perform all multiplications and divisions, working from left to right.
Rule 3: Lastly, perform all additions and subtractions, working from left to right.

Therefore,
1. (9+3) = 12
2. 48/2 = 24, 24(12) = 288
3. None left

Answer is 288, based on the way the OP wrote the equation. End of story.

Wrong. It is not the end of story. In elementary arithmetic (the one that contains the / sign) the operation x(y) is not defined. You can't just assume it means x*(y). If you assume that x(y) = x*(y), then the answer is 288. If you assume x(y) = (x*y), then the answer is 2. Since the operation to begin with is not properly define, the problem is not well formed. So, like I said, the answer depends on your assumptions. If you assume x(y) = x^y, the answer is something entirely different. You can even assume that there are no numbers greater than 53 (i.e. the field Z_53).

Once again, you assumed the question was asking 48/2*(9+3). But that is not what was written.

-MBP

4/7/11

EDIT: yeah, I get what you mean now but I don't think we're trying to distribute the 12 here... My 1/48th Chinese ancestry says so lol.

People like Coldplay and voted for the Nazis, you can't trust people Jeremy

4/7/11

lmfao. holy shit. can we all just agree that the question is written idiotically? no one would ever write it that way in the first place.

-MBP

4/7/11

According to my calculator

But I tried it on my flatmates calculator and got different results lol

In reply to Solidarity
4/8/11
Solidarity:
Kanon:

How sad...

Anyway, those still in denial and not willing to accept the rules of order of ops, throw '=48/2(9+3)' in excel

sure, order of ops but as written implies 48/(2x) rather than 48/2*x

either way it's not a big deal

I originally sided with 288, but Solidarity brings up a very good argument for 2. So I change my answer to this: there is no answer. Some genius somewhere came up with this seemingly simple math problem that is fundamentally flawed in that it has ambiguous syntax. Probably laughing his ass off about how a bunch of dolts are arguing over something with no real answer

Money Never Sleeps? More like Money Never SUCKS amirite?!?!?!?

In reply to Jorgé
4/8/11
Jorge:

I did, and not to be a dick but I didn't see any room for different interpretations in it at all dude. While I get what you mean, it really is pretty straight forward and I think you're just confusing yourself by overanalyzing what x(y) could be.

I really don't mean this in the dick way I know it's going to come off (no pun intended).

Have you ever taken a serious course in mathematics? Not the bullshit you learn in high school or a basic calculus course in freshman year, but a rigorous course in algebra where you study groups, fields and other algebraic structures? If you had, you really wouldn't have made the statement about "overanalyzing what x(y) could be." Understanding what x(y) means is the entire source of the confusion in the question. And it's not defined in elementary arithmetic. It doesn't mean multiplication. PEMDAS/BEDMAS doesn't even apply until you define what x(y) means. Normally you can infer it from the question, but in this case you can't.

-MBP

In reply to ShreddiesBrah
4/8/11
Awon Eleyi Awon Eleyi Won Bad Gan:

According to my calculator

But I tried it on my flatmates calculator and got different results lol

My point exactly. The question is completely ambiguous.

-MBP

In reply to ShreddiesBrah
4/8/11
Awon Eleyi Awon Eleyi Won Bad Gan:

But I tried it on my flatmates calculator and got different results lol

When CALCULATORS argue over the right answer, you know the question is flawed, LOL.

Money Never Sleeps? More like Money Never SUCKS amirite?!?!?!?

4/8/11

@ MBP

Haha. Yeah, I get what you mean. I edited my answer before I read your above post.

People like Coldplay and voted for the Nazis, you can't trust people Jeremy

4/8/11

for those who throw a shit at someone for saying 2.... please have a sense of humor

In reply to Jorgé
4/8/11
Jorge:

@ MBP

Haha. Yeah, I get what you mean. I edited my answer before I read your above post.

Haha, just saw it now. This really was the best thread in a long time.

-MBP

4/8/11

Jesus MBP you got me trying to work this out on pen and paper now... lol.

People like Coldplay and voted for the Nazis, you can't trust people Jeremy

In reply to manbearpig
4/8/11
manbearpig:
Jorge:

I did, and not to be a dick but I didn't see any room for different interpretations in it at all dude. While I get what you mean, it really is pretty straight forward and I think you're just confusing yourself by overanalyzing what x(y) could be.

I really don't mean this in the dick way I know it's going to come off (no pun intended).

Have you ever taken a serious course in mathematics? Not the bullshit you learn in high school or a basic calculus course in freshman year, but a rigorous course in algebra where you study groups, fields and other algebraic structures? If you had, you really wouldn't have made the statement about "overanalyzing what x(y) could be." Understanding what x(y) means is the entire source of the confusion in the question. And it's not defined in elementary arithmetic. It doesn't mean multiplication. PEMDAS/BEDMAS doesn't even apply until you define what x(y) means. Normally you can infer it from the question, but in this case you can't.

MBP, you are SPOT ON. If I had an SB to give you would get one. The definition of x(y) is absolutely the source of the ambiguity and the reason why this isn't as simple as it looks.

Money Never Sleeps? More like Money Never SUCKS amirite?!?!?!?

4/8/11

lol, fucking WSO. I get 3 monkey shits for being right the entire time. wow

-MBP

4/8/11

It's clearly 3...

In reply to manbearpig
4/8/11
manbearpig:

lol, fucking WSO. I get 3 monkey shits for being right the entire time. wow

http://en.wikipedia.org/wiki/Bracket_(mathematics)

x(y) is a verrrrrrry well known abbreviation for x*(y). Look at any math book expanding a product, such as x!, and it is always represented as x(x-1)(x-2)...

The multiplication is obvious.

Also that calculator computes different values because of an error in the parser implementation.

In reply to manbearpig
4/8/11
manbearpig:

lol, fucking WSO. I get 3 monkey shits for being right the entire time. wow

hysterical.

In reply to absinthe
4/8/11
absinthe:
manbearpig:

lol, fucking WSO. I get 3 monkey shits for being right the entire time. wow

Also that calculator computes different values because of an error in the parser implementation.

O really?
http://www.studygs.net/pemdas/pemdas2.htm

Solving this equation the same way would give an answer of 2. This equation could easily be argued both ways. My first answer when I first saw it was 288, but after thinking about it, I'm sitting on the fence. I also have one calculator showing me 2 and one showing 288. Not sure which one to use for my finals lol

In reply to absinthe
4/8/11
absinthe:
manbearpig:

lol, fucking WSO. I get 3 monkey shits for being right the entire time. wow

http://en.wikipedia.org/wiki/Bracket_(mathematics)

x(y) is a verrrrrrry well known abbreviation for x*(y). Look at any math book expanding a product, such as x!, and it is always represented as x(x-1)(x-2)...

The multiplication is obvious.

Also that calculator computes different values because of an error in the parser implementation.

I'm sorry, but where in that article does it say that x(y) is the same as x*(y)? I never denied that it is commonly understood that way. But it is also commonly understood in many other ways.

It's also pretty commonly understood that xy = yx, but in general it is completely wrong (look up non-abelian groups). And giving me one example of x! being expressed as x(x-1)...1 doesn't prove anything.

The multiplication, most certainly, is not obvious. And if you want to go with the conventional way of solving it, the answer is still 2.

-MBP

4/8/11
In reply to manbearpig
4/8/11
manbearpig:
absinthe:
manbearpig:

lol, fucking WSO. I get 3 monkey shits for being right the entire time. wow

http://en.wikipedia.org/wiki/Bracket_(mathematics)

x(y) is a verrrrrrry well known abbreviation for x*(y). Look at any math book expanding a product, such as x!, and it is always represented as x(x-1)(x-2)...

The multiplication is obvious.

Also that calculator computes different values because of an error in the parser implementation.

I'm sorry, but where in that article does it say that x(y) is the same as x*(y)? I never denied that it is commonly understood that way. But it is also commonly understood in many other ways.

It's also pretty commonly understood that xy = yx, but in general it is completely wrong (look up non-abelian groups). And giving me one example of x! being expressed as x(x-1)...1 doesn't prove anything.

The multiplication, most certainly, is not obvious. And if you want to go with the conventional way of solving it, the answer is still 2.

Since x(y) is understood by everyone to mean x*(y), that is the convention -> the conventional way of solving this leads to 288.

No need to bring up group theory for this, the operations being used here are commonly understood.

In reply to absinthe
4/8/11
absinthe:
manbearpig:
absinthe:
manbearpig:

lol, fucking WSO. I get 3 monkey shits for being right the entire time. wow

http://en.wikipedia.org/wiki/Bracket_(mathematics)

x(y) is a verrrrrrry well known abbreviation for x*(y). Look at any math book expanding a product, such as x!, and it is always represented as x(x-1)(x-2)...

The multiplication is obvious.

Also that calculator computes different values because of an error in the parser implementation.

I'm sorry, but where in that article does it say that x(y) is the same as x*(y)? I never denied that it is commonly understood that way. But it is also commonly understood in many other ways.

It's also pretty commonly understood that xy = yx, but in general it is completely wrong (look up non-abelian groups). And giving me one example of x! being expressed as x(x-1)...1 doesn't prove anything.

The multiplication, most certainly, is not obvious. And if you want to go with the conventional way of solving it, the answer is still 2.

Since x(y) is understood by everyone to mean x*(y), that is the convention -> the conventional way of solving this leads to 288.

By everyone? Really? Conventions aren't defined by ignorant people. They're defined by people who know what they are talking about. No mathematician would agree with you. They would all agree with me that this is an ill formed problem. And if they were forced to solve it, most of them would answer 2.

-MBP

Pages

What's Your Opinion? Comment below:

Login or register to get credit (collect bananas).
All anonymous comments are unpublished until reviewed. No links or promotional material will be allowed. Most comments are published within 24 hours.
WallStreet Prep Master Financial Modeling