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48÷2(9+3) = ????

Discussion in 'BBS Hangout' started by Pull_Up_3, Apr 7, 2011.

?

PEMDAS

  1. 288

    48.9%
  2. 2

    46.2%
  3. idunnololdog.jpg

    4.9%
  1. brantonli24

    brantonli24 Member

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    It's moderately disturbing that the number of people voting for 2 continues to rise.
     
  2. Hayesfan

    Hayesfan Member

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    Yep, now we only use it for those who have special needs. The rest we just tell them the order.
     
  3. DaDakota

    DaDakota Balance wins
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    I found all of the name calling in here hilarious over a simple poorly organized equation.

    I spoke to a good friend of mine who is a math instructor and has been for about 30 years, he said that inside the parenthesis has to resolve first, but that it is no longer taught that the parenthesis have any hierarchy when meant as multiplication.

    So, therefore, the answer is 288.

    The way I was taught was that the parenthesis had first priority, that is only the case these days with the numbers inside.

    So once you add the 9+3, essentiall the equation changes and the parenthesis can be replaced by a *

    48/2*12

    or 24*12.....

    Essentially the 2(12)......resolves to 2*12...making it come up the right way.

    My guess is that someone wrote this knowing that old school methodology would come into play, and get folks to arguing about it.

    Mission accomplished !

    DD
     
  4. BleedRocketsRed

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    Wow you are right. 2 has overtaken!

    Is more than 50% of the world braindead? After this internet phenomenon, I am convinced so. Smmfh.
     
  5. parmesh

    parmesh Member

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    288 right?

    48/2*(9+3)

    Do PEMDAS in a loop...

    Going left to right...

    P --> 48/2*12

    left to right...

    D --> 24*12

    left to right...

    M --> 288

    Please vote 288!!!
     
  6. TheRealist137

    TheRealist137 Member

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    This problem lies in the interpretation of the problem.

    It lies in the choice of sign, the ÷ signifies that the person who wrote the problem wants the entire problem to be treated from straight left to right, rather than as a fraction.

    If it was instead written such that

    48/2(9+3)

    The answer would indeed be 2 because I believe that he wanted a fraction.

    But since he uses the ÷, it leads me to believe that the author wants to use it as a straight up divided by symbol.

    Now, on the other hand, the other interpretation comes from the bottom, where the question is whether or not the author intended by putting the 2(9+3) to make those two statements together. In that case, the answer would also be 2.
     
  7. AroundTheWorld

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    Sorry, but it would be exactly the same if he had written 48/2(9+3). The correct answer is 288.
     
  8. TheRealist137

    TheRealist137 Member

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    would you still say it was 288 if it was written like this?

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

    That's what the "/" signifies, in my opinion.
     
  9. AroundTheWorld

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    If it was written like that, the result would be 2, but that is not what the "/" signifies.
     
  10. durvasa

    durvasa Member

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    So what's 48/6+2 then? Is it:

    48
    ------ ... ?
    6+2
     
  11. AroundTheWorld

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    10...
     
  12. t_mac1

    t_mac1 Member

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    it's 288. but i can see where people can get 2 from although it's wrong. very poorly written math question.

    this thread means we're all fairly educated b/c we're discussing a freakin' MATH problem

    but the proper way is: you do (9+3) first. then you go from left to right.
     
  13. vlaurelio

    vlaurelio Member

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    and if someone does the multiplication first or goes from right to left, then he's simply wrong.. and it has nothing to do with the question being poorly written..
     
  14. CometsWin

    CometsWin Breaker Breaker One Nine

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    The answer to 48/2(9+3) is still 288.

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

    It's beyond belief that this is a discussion.
     
  15. tinywang

    tinywang Member

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    People are confusing multiplication/division with addition/subtraction.

    In school, we usually see equations like 48 + 2 (9 +3) where we DON'T add the 48 and 2 first but instead just factor in the 2.

    However, when it's multiplication/division, we combine the numbers into one term.

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

    And how the freak is '2' winning in this damn poll!??
     
  16. AirBud#10

    AirBud#10 Member

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    2FTW:grin:
     
  17. BleedRocketsRed

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    I know. Especially since a consensus seems reached in the comments section and 288 was winning this morning. People confuse the hell out of me.
     
  18. Dr of Dunk

    Dr of Dunk Clutch Crew

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    It's the downfall of Amurka, I tell you!
     
  19. Ramathorn006

    Ramathorn006 Member

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    Police
    Eat
    Many
    Donuts
    At
    Shipleys

    or Parenthesis Exponents Multiplication Division Addition Subtraction

    48/2(9+3)
    48/2(12)
    48/24
    2
     
  20. dial1revenge

    dial1revenge Member

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    This has already been argued. Multiplication and division are on the same level. People who think it's a simple multiplication before division all the time don't have any math sense.
     

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