I think it's 288, but some people keep saying 2, what is the answer?

BEDMAS bro

48/(2(9+3))
48/(2(12))
48/(24)
2

There is a huge difference between 48/(2(9+3)) and 48/2(9+3). The latter case is to be assumed, thus the answer is 288.

uh:

48/2(9+3)
48/2(12)

BEDMAS

multiplication and division are equal precedence, go left to right

(48/2) * 12
288

What the hell is BEDMAS? I thought it was PEMDAS...

Parenthesis would make 9+3 turn into 12 first, which would then multiply with 2 to create 24, which is then divided with 48 to get 2.

..right? JK ITS 288

Multiplication and division are treated equally regardless of PEMDAS and BEDMAS, they're the exact same operation.

Hmm wow, I got confused on that. so yeah, 288

But if I treat 2(9+3) as one entity, it would be equal to (9*2 + 3*2) which is 24, and 48/24 = 2.

Let's just go from left to right instead and get 288 every time. Woo!

EDIT:
Considering you already said that, it now just seems like you're claiming it could be 2 just to keep the discussion going.

What the hell... BEDMAS? How about the normal PEMDAS. Parentheses, exponent, multiplication, division, addition, subtraction. In that order.

So depending on the algorithm the calculator is using you will get 48/24 or 24*12. The math problem is poorly written. You're supposed to use parentheses to denote the order of operations. A well written problem would be more like 42/(2(9+3)).

Post has been edited 1 time(s), last time on Apr 8 2011, 10:00 pm by CecilSunkure.

Lol Someone's been trolling /b/ huh

Answer is def 288.

well if we had any sweet math majors they could start saying things about multiplication about juxtaposition, the answer is 2.

That's why I said 2 originally, and was bombarded with "288!" in the shoutbox.

That sort of coding is due to lazy programmers (simpler to write code that multiplies parentheses together first). The proper method is to process them in sequential order.

I guess it's up to the interpretation of if you feel that 2 * (9+3) is different from 2(9+3)

Quote from Neki

well if we had any sweet math majors they could start saying things about multiplication about juxtaposition, the answer is 2.

Math major here, 48/2(9+3) = (48/2)(9+3) = 24*12 = 288.

Now, if you REALLY wanted to be an ass, yes, you should add the 9 and 3 first. It wouldn't change the answer.

48/2(9+3) = 48/2(12) = 24(12) = 288.
Now please, stop trolling.

Unless everything after 48 is on the lower half of the fraction, which it is. Your insertion of parenthesis are wrong.

Quote from ClansAreForGays

Quote from poison_us

Quote from Neki

well if we had any sweet math majors they could start saying things about multiplication about juxtaposition, the answer is 2.

Math major here, 48/2(9+3) = (48/2)(9+3) = 24*12 = 288.

Now, if you REALLY wanted to be an ass, yes, you should add the 9 and 3 first. It wouldn't change the answer.

48/2(9+3) = 48/2(12) = 24(12) = 288.
Now please, stop trolling.

Unless everything after 48 is on the lower half of the fraction, which it is. Your insertion of parenthesis are wrong.

I doubt my single act are wrong. In any case:

Quote

48÷2(9+3)

That means 48/2(9+3), which is equal to (48/2)(9+3). Agreed, it isn't exactly clear if he meant 48/(2*(9+3)), or if he meant what he typed. In either case, I'm assuming A) that he's writing exactly what he means and B) he's not trolling.

My B) was incorrect, I'll admit that. Obviously, any idiot can see this is one big troll thread. My mistake, I thought that Ultipoo posted something legitimate for once. I guess I forgot how he was in his absence.

In any case, I'll take it to my calc professor monday, and I will record (yes, record) his reaction and post it here. I doubt it will be anything more than "whoever thought it was two was mistaken, because 48/2 is 24 and 24 times the quantity of 9 plus 3 is 24 times 12 and that gives me 288". Yes, that's exactly how he talks.

PEMDAS. BEDMAS is a lie.

48 / 2 * (9+3)
P -> 48 / 2 * 12
E -> 48 / 2 * 12
M -> 48 / 24
D -> 2
A -> 2
S -> 2
= 2

There is no other way, there is no discrepancy. Evaluate in PEMDAS order. If that's not the answer you want, add more parentheses to properly denote your order of operations. Multiplication != Division, precisely because of discrepancies like this.

Poison_us, you are not a math major, because you are wrong. Also, when you bring it to your prof, don't hand write it. Hand written mathematical operations don't have discrepancies because we don't have to write horizontally like this text.

On second thought, the answer could be 42.

I'm joking, you can still be a math major

Post has been edited 3 time(s), last time on Apr 8 2011, 11:03 pm by Vrael.

Quote from Vrael

Evaluate in PEMDAS order.

http://en.wikipedia.org/wiki/Common_operator_notation
1 + 2 + 3 * 4 * 5 + 6 + 7 = ((((1 + 2) + ((3 * 4) * 5)) + 6) + 7)

So you're saying that their example should read (((1+2) +(3*(4*5))+6)+7), correct? Although this does not change the value ~ only stupid examples use problems that can be rearranged like this and still get the same answer.