Poll: What is the answer to 48/2(9+3)?

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Bon_Clay

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Aug 5, 2010
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KingArmery said:
Bon_Clay said:
I'm frightened by the amount of people that said the answer is 2....your elementary school failed you sad individuals.

Written the way it is, the answer can only be 228. You can not do the multiplication before the division without extra brackets being used.
It's funny to see a failed burn attempt. :p
DAMMIT! You win this round, I'll edit my post but I admit I fucked that up. Oh well, pressing the wrong key is still less of a mistake that not understand why its wrong.
 

subtlefuge

Lord Cromulent
May 21, 2010
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Bon_Clay said:
KingArmery said:
Bon_Clay said:
I'm frightened by the amount of people that said the answer is 2....your elementary school failed you sad individuals.

Written the way it is, the answer can only be 228. You can not do the multiplication before the division without extra brackets being used.
It's funny to see a failed burn attempt. :p
DAMMIT! You win this round, I'll edit my post but I admit I fucked that up. Oh well, pressing the wrong key is still less of a mistake that not understand why its wrong.
The real travesty, besides the fact that OT is being used for homework help, is the way the problem is written. Either answer could theoretically be right, depending on how the problem was originally written.
 

Kiroy

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Mar 5, 2010
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mew4ever23 said:
Kiroy said:
mew4ever23 said:
How is this problem blowing up other forums? It's simple order of operations or BEDMAS, as the mnemonic I was taught goes:

1. Brackets
2. Exponents
3. Division and Multiplication (Left to right, neither has priority)
4. Addition and Subraction (Left to right, neither has priority)

The answer, in steps:

48/2(9+3)
48/2*12
24*12
=288

(* = Multiplication)
Division is just multiplying by a reciprocal. It's the same thing, neither takes priority so it is in fact 288. I'm surprised by how many people think it's 2.
Reading some other posts I think I've discovered the source of the conflict: the fact that this question is very, very poorly written.

Some people (myself included) are taking it literally, seeing it as:

48 * (9+3)
2

With this layout, the answer is 288. However, the other side of the argument are perceiving the brackets as part of the denominator of 48/2. This is what they see:

___48__
2 * (9+3)

With this layout, the answer is 2.
I see what you're saying... except they are wrong...
 

Mayki5

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Apr 8, 2011
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Casio fx-83MS gives the answer as 2, when inputting exactly as the title does. At least where I am, multiplication is given a higher priority for calculation than division is, to 2*(9+3) would be calculated first, which does indeed give the answer 2. Methods of teaching the priority order may have changed since I went through the school system, and on country, leading to conflicting information, based purely on how people were taught.
 

Superior Mind

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Feb 9, 2009
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mew4ever23 said:
1. Brackets
2. Exponents
3. Division and Multiplication (Left to right, neither has priority)
4. Addition and Subraction (Left to right, neither has priority)
This. I was never taught any acronyms but it's obvious how they've misled people. Answer is 288.
 

XzarTheMad

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Oct 10, 2008
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My last attempt in this thread before I give up.

Since there is no visible symbol of multiplication between the 2 and the paranthesis, it MUST be a single entity, 2(9+3). The idea that you must put paranthesis around it holds no weight, as I can just as well say that you must put a paranthesis around 48/2 for the 288 answer to be correct. It's not a matter of poorly written or lacking paranthesis, it's a matter of poor reading comprehension.

Had it been 48/2*(9+3), then it's correct that there is a problem. But, it's not. It's clearly there, in the title. No multiplication symbol. It's a single entity. It must be treated first, resulting in (2*9)+(2*3) = 24, thus making the answer 2. The entire question is based on this. This is THE question. Can you see this? Do you know this? And unless this was a question thought up by a moron in his mom's basement, I can't see any reason this would not be made EXACTLY to test people on this rule, that if you omit a multiplication symbol it's because they're a single entity. Just like 4X = 4*X, but because you treat them as a single entity you omit the multiplication symbol.
 

AstylahAthrys

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Apr 7, 2010
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I got 288....

48/2(9+3)-> 48/2(12), can also be written as 48/2*12-> 24*12=288. Parenthesis around a single number means multiplication, right? I'm fairly certain I'm right... then again, it's been almost 3 years since I've taken a math class.
 

Zantos

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Jan 5, 2011
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It's just badly written. I got 2 but can see exactly how others interpret it as 288. I dunno though, it's been a long time since I used anything that was just normal numbers.
 

Grospoliner

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Feb 16, 2010
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The way it is written 48/2(9+3) would result in an answer of 2. There are no other modifiers or indicators the way it is written to designate whether it is a single fractional problem or not.

If the problem was written 48/2_(9+3) then the answer would naturally be 288.
 

jp201

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Nov 24, 2009
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Jarl said:
Theron Julius said:
It's nothing more than simple PEMDAS

48/2*(9+3)

You do what's in the parentheses first

48/2*12
No.

You multiply into the paranthesis, as such:
2*(9+3) = (2*9)+(2*3) = 18+6 = 24

Then you do whatever multiplication or division comes first. In this case it was 48/2

24*12
Dude, wat? You'd do that if the question was (42/2)*(9+3). You can't divide by a single number in the denominator and leave out the rest. Everything "above" the division and everything "below" the division.


I hope this is not an indication of American math. Honestly, I suck at math, and this just seems like elementary school stuff to me. Whatever PEMDAS is, this is a clear and easy matter of calculating it using your brain, not a standard formula.

48/2(9+3) = 48/(2*9)+(2*3) = 48/18+6 = 48/24 = 2

Anything else is incorrect.
Please stop trolling the answer is 288

follow PEMDAS



saying you suck at math then saying its real easy and still shwoing the wrong answer just shows your ignorance and stupidity.

Your Denmark math is obviously superior then.
 

eljawa

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Nov 20, 2009
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288
48/2 times 12
24 times 12
the parenthesis seperate them until you do the distribution
 
Sep 17, 2009
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Brawndo said:
ProfessorLayton said:
I don't know why you want us to do your homework for you, but I got 288... after you do the parentheses, you're supposed to do them from left to right. I think it's a poorly written problem, though.
lol it's not a homework problem man, I'm not in middle school. This question is blowing up other forums and reddit.

48/2(12) = 2 using PEMDAS
Nope

it is 288.

http://www.wolframalpha.com/input/?i=48%2F2%289%2B3%29
 

XzarTheMad

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Oct 10, 2008
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jp201 said:
Jarl said:
Theron Julius said:
It's nothing more than simple PEMDAS

48/2*(9+3)

You do what's in the parentheses first

48/2*12
No.

You multiply into the paranthesis, as such:
2*(9+3) = (2*9)+(2*3) = 18+6 = 24

Then you do whatever multiplication or division comes first. In this case it was 48/2

24*12
Dude, wat? You'd do that if the question was (42/2)*(9+3). You can't divide by a single number in the denominator and leave out the rest. Everything "above" the division and everything "below" the division.


I hope this is not an indication of American math. Honestly, I suck at math, and this just seems like elementary school stuff to me. Whatever PEMDAS is, this is a clear and easy matter of calculating it using your brain, not a standard formula.

48/2(9+3) = 48/(2*9)+(2*3) = 48/18+6 = 48/24 = 2

Anything else is incorrect.
Please stop trolling the answer is 288

follow PEMDAS



saying you suck at math then saying its real easy and still shwoing the wrong answer just shows your ignorance and stupidity.

Your Denmark math is obviously superior then.
How is my answer wrong? Please tell me. Rather than trolling I actually showed where the problem was, and how it should be calculated instead. Actually, it's rather ironic that you accuse me of trolling, and then attack my country.

Whatever PEMDAS is, it's obvious that you are doing it wrong. Consulting an american friend, I was told that even with PEMDAS the answer is 2. I've explained why in my previous post (not the one quoted), please read that. And, if you have anything more to say, please let it be educated.
 

Custard_Angel

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Aug 6, 2009
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PEMDAS/BODMAS are both equally valid.

Parentheses/Brackets > Exponents/Order > Division/Multiplication = Multiplication/Division > Addition/Subtraction = Subtraction/Addition

You go from left to right, top to bottom and work it out.

I read it as:

48/2(9+3)
=48/2*12
=24*12
=288
 

MagusVulpes

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Nov 18, 2009
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I was taught that division signs, '/', count as being a grouping symbol. Ergo, using that logic you would wind up with 48 over top of 2*(9+3), which would be better clarified as 48/(2*(9+3)).

It all depends on the order that you think it should be done in. Without clarification, it all depends on how YOUR math teacher taught you.
 

Rabid Toilet

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Mar 23, 2008
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Oh god, can't you all see what he's doing? This is the new .99... = 1 thread, and you're all getting sucked into it.

The truth is that the equation is written ambiguously, so that two answers are both reasonably correct, and everyone argues about it for pages and pages and gets nowhere. Just stop this thing before it goes on for a hundred pages.
 

thedeathscythe

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Aug 6, 2010
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Brawndo said:
ProfessorLayton said:
I don't know why you want us to do your homework for you, but I got 288... after you do the parentheses, you're supposed to do them from left to right. I think it's a poorly written problem, though.
lol it's not a homework problem man, I'm not in middle school. This question is blowing up other forums and reddit.

48/2(12) = 2 using PEMDAS
It's BEDMAS where I am, but I guess it's brackets/parenthesis.

48/2(9+3)
So 9 + 3, for the B/P
48/2(12)
Now the next step is division.
24(12)
Now we multiply the brackets with the outside
288
Not sure where you went wrong.
 

XzarTheMad

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Oct 10, 2008
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MagusVulpes said:
I was taught that division signs, '/', count as being a grouping symbol. Ergo, using that logic you would wind up with 48 over top of 2*(9+3), which would be better clarified as 48/(2*(9+3)).

It all depends on the order that you think it should be done in. Without clarification, it all depends on how YOUR math teacher taught you.
While I agree with you, it technically comes down to whether your math teacher taught you properly or not. Math is not subjective in the least.