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48÷2(9+3) = ????

Which one is it?


  • Total voters
    101

jnewton

Loitering on PERB
Aug 9, 2010
378
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0
MrR, thanks for explaining it once again!

Edward explained the equation in post #5. 42 posts later, it's still the same answer. LOL
 

Bob Loblaw

New member
Dec 23, 2010
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http://knowyourmeme.com/memes/48293 huh....they don't mention perb in their spread section.... lol

The way the equation is written 48÷2(9+3) = ? should lead to an answer of 288 as most people have suggested. Basic order of operations.
I think the confusion comes when you write it as 48/2(9+3). Does the / indicate that this is 48 over 2(9+3)? If you think of it as a fraction in this fashion then yes the answer would be 2.
 

mercyshooter

Ladies' Lover
Aug 5, 2007
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http://knowyourmeme.com/memes/48293 huh....they don't mention perb in their spread section.... lol

The way the equation is written 48÷2(9+3) = ? should lead to an answer of 288 as most people have suggested. Basic order of operations.
I think the confusion comes when you write it as 48/2(9+3). Does the / indicate that this is 48 over 2(9+3)? If you think of it as a fraction in this fashion then yes the answer would be 2.
Pretty much sums up the conclusion! Both is correct! If you read further in the wikipedia page, in algebra, it's 288; in computer programming, it's 2!
It all depends on the explanation and the way you look at the equation!
 

cool-dude-99

New member
Nov 1, 2010
25
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1
The question has just been poorly written. I havent used that division sign since I have started studying engineering. If you had any clue about math, you would not write a mathematical calculation like that. Like everyone else says, if you go back to BEDMAS, you get 288.
 

pokemon

Active member
Dec 16, 2002
1,420
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I agree - 288

From what I remember, you do the equation in the brackets first, followed by division & multiplication, then lastly addition & subtraction equations. It does not matter where such equations are situated - just go from left to right.

So in this case, the answer should be 288.

You would get 2 if the equation was: 48/(2(9+3))
 

huggzy

Banned
May 30, 2010
616
2
18
There is nothing confusing about this equation if you understand basic mathematics.

The equation is not poorly written. Just poor math skills by the people getting confused by it.

288. No debate.
 

mercyshooter

Ladies' Lover
Aug 5, 2007
2,176
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There is nothing confusing about this equation if you understand basic mathematics.

The equation is not poorly written. Just poor math skills by the people getting confused by it.

288. No debate.
Did you read what I write? When it comes to multiplication and division, it's very important to specify which one they wanna do first because the result when you do it in the order as described is not exactly identical of the other way around. Practise more and you'll know!
 

jnewton

Loitering on PERB
Aug 9, 2010
378
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Buy this T-shirt:

http://www.zazzle.com/48_2_9_3_tshirt-235882834792365529

The original question is ambiguous. If it had been written as 48 ÷ 2 x (9+3), the answer would clearly be 288. However, the question can easily be interpreted as 48/2(9+3), in which case the answer is 2.

Shoot the writer and find someone else who can make their intentions clear. :)
Sorry folks, but it isn't ambiguous. It is universally known (or at least was when I took Algebra in grade school) that 2(9+3) is the same as 2x(9+3).
 

Edward Lei

Banned
Feb 12, 2009
1,863
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Did you read what I write? When it comes to multiplication and division, it's very important to specify which one they wanna do first because the result when you do it in the order as described is not exactly identical of the other way around. Practise more and you'll know!
You can't be more wrong. Multiplication & division carry the same weight so you always do them in the order that they are presented, left to right unless they are in brackets.
 

mercyshooter

Ladies' Lover
Aug 5, 2007
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You can't be more wrong. Multiplication & division carry the same weight so you always do them in the order that they are presented, left to right unless they are in brackets.
Then why can we do addition and subtraction from left to right or right to left or which ever way we want and still get the same answer? For god's sake, they carry the same weight too! So, yes, this equation is ambiguous! Like I said, 288 or 2 are both correct answer!
 

Edward Lei

Banned
Feb 12, 2009
1,863
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Then why can we do addition and subtraction from left to right or right to left or which ever way we want and still get the same answer? For god's sake, they carry the same weight too! So, yes, this equation is ambiguous! Like I said, 288 or 2 are both correct answer!
The question is not ambiguous and no, 2 is not the correct answer - pretty obvious by now. This is grade 8 math - sorry if you've forgotten but it's pretty pointless to argue with fact. I don't make the rules, I just apply them.
 

huggzy

Banned
May 30, 2010
616
2
18
Did you read what I write? When it comes to multiplication and division, it's very important to specify which one they wanna do first because the result when you do it in the order as described is not exactly identical of the other way around. Practise more and you'll know!

Uhhh...yes. I did read what you wrote. Unfortunately you don't know what you're talking about.

When it comes to multiplication and division its always left to right if its not specified. Sorry...but maybe you need to retake your elementary math courses again.

Believe me...I do "know" that you don't "know".
 

mercyshooter

Ladies' Lover
Aug 5, 2007
2,176
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Uhhh...yes. I did read what you wrote. Unfortunately you don't know what you're talking about.

When it comes to multiplication and division its always left to right if its not specified. Sorry...but maybe you need to retake your elementary math courses again.

Believe me...I do "know" that you don't "know".
Then what about people who are in computer science? Multiplication has the highest precedence than division! This is why the equation is ambiguous! Computer people will tell you it's 2!
 

c_i44

Member
Nov 3, 2010
109
0
16
Seems kind of weird.

I know what the answer is because I just took a math course.

To me it is obvious the answer is 288. Just the rules of math. For the people arguing that the equation is not clear. I agree they should take another look at basic algebra.

Have a great day all.
 

Chef99

Member
Apr 22, 2008
258
15
18
I wonder if you ever take computer science courses. :rolleyes:
Please, we are not writing a computer program nor learning a programming language. Let's not confuse basic elementary math skills with other rules needed for programming computers. Basic math skills haven't changed in a long time and were around a hell of a lot sooner than computers. The ambiguity only exists in the equation if you second guess what was meant. According to the basic rules (which many seem to have forgotten and are adding yet other rules of their own), the answer is 288. If the person who wrote the equation wanted 2 to be the answer then they made an error and should have written it differently.
 
Ashley Madison
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