48÷2(9+3) = ????

http://forum.bodybuilding.com/showth…hp?t=133389973

What is the answer? I fail at math, even basic shit.

48÷2(9+3) = ????

2 or 288?

I forgot to add a poll ? Is there any way to add it afterwards?

288

Basic order of operations. Parentheses, then multiplication or division left to right. Kinda tricky with the implied multiplication, but still not much room for "interpretation".

48÷2(9+3)=288
48÷(2(9+3))=2

Yes, without the brackets, 288 should be the correct answer, but you'll find some calculators get it wrong!!

According to order of operations it would be
48 / 2(12)
= 48/24
= 2

Originally Posted by Corwin
Yes, without the brackets, 288 should be the correct answer, but you'll find some calculators get it wrong!!

Hence the beauty of RPN caclulators:

48 2 9 3 + * / = 2
48 2 / 9 3 + * =288

No need for parantheses at all.

This is the way I read it:

48÷2(9+3)
48÷2(12)
24(12)
288

Inside the parenthese first, then order of operations from left to right

'int' object is not callable.

Who the hell uses that "÷" useless operator? I first thought it meant "+"

48÷2(9+3) = ????

Now if you write it in a sensible way then it is:

48/2*(9+3) = 48/2*12 = 24*12 = 288 <- That is the mathematically correct result.

On the other hand the bloke who wrote it could just have been lazy. If the equation had been written in a prober way everyone would know what it is supposed to be (and with proper way I mean as a fraction).

Originally Posted by Roi Danton
Who the hell uses that "÷" useless operator?

A number of calculators do, for instance the hp-48 emulator i use occasionally. But it is confusing, since it's also used in stead of "-" where I live.

Originally Posted by pibbur
A number of calculators do, for instance the hp-48 emulator i use occasionally. But it is confusing, since it's also used in stead of "-" where I live.

Yes, you have it on calculators or in computer calculation programs as an icon. But you don't write it.

Google is your friend :
http://www.google.com/search?q=onlin…4aef4afa8e1652

Originally Posted by Roi Danton
Yes, you have it on calculators or in computer calculation programs as an icon. But you don't write it.

I guess you're right. Last time I saw it used this way (before this thread) was 12th of November 1973, so it's unusual, yes.

48/2*(12) = 288
48/(2*12)=2

edit: I suck at math too. I did learn one handy thing though. Remember the initialisation BODMAS

Brackets
Orders(square roots, etc)
Divisions, Multiplications
Additions,Subtractions.

Thats the order you work it out in.

I expect this thread to have reached at least 10 pages by this time tomorrow.

Get on it.

haha, I am glad someone finally saw the irony of we intelligent RPGWatchers arguing over this stupid thing…. like a bunch of body builders

Originally Posted by GothicGothicness
haha, I am glad someone finally saw the irony of we intelligent RPGWatchers arguing over this stupid thing

Men arguing - no woman involved IYAM.

Originally Posted by GothicGothicness
like a bunch of body builders

Men care about numbers, the right numbers, about sizes, the right sizes.

Crispy may be a woman.

==============

O, I forgot to add a or better a

I'm saying 2 because the multiplication operator was implied instead of written out, which makes me think the author has something like:

48
--------
2x

where x is 9+3. If the author then turns around and says I'm wrong, then I will repectfully point out that the equation isn't written very clearly and thus deserves to be misinterpreted. I'm not wrong, I'm delivering justice!

Originally Posted by dteowner
288

Basic order of operations. Parentheses, then multiplication or division left to right. Kinda tricky with the implied multiplication, but still not much room for "interpretation".

^This is the standard algebra interpretation. It would be surprising if some calculators get it wrong…