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Math Problem taking the Internet by storm

Discussion in 'General Chat' started by cronicmole, Apr 10, 2011.



  1. JohnnyLaw

    JohnnyLaw Senior member

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    It can be confusing because the notation is bad. What's your point?
     


  2. iand

    iand Senior member

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    This is not a math problem. This a sequence of signs that can be interpreted in two ways depending on convention agreed upon.
     


  3. ter1413

    ter1413 Senior member

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    2..
     


  4. godofcoffee

    godofcoffee Senior member

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    This is not a math problem. This a sequence of signs that can be interpreted in two ways depending on convention agreed upon.

    Interesting perspective. Your argument holds true for any field that can be linguistically expressed, though - there is common agreement on the order of operations, just like there is common agreement on what a lumen is or what constitutes benzene. Disagreement implies ignorance of the field, in this case math.
     


  5. binge

    binge Senior member

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    Agreed conventions on not just operator precedence, but also associativity.
     


  6. Archivist

    Archivist Senior member

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    Fucking Magnets, How Do They Work?

    IMPORTANT NOTICE: No media files are hosted on these forums. By clicking the link below you agree to view content from an external website. We can not be held responsible for the suitability or legality of this material. If the video does not play, wait a minute or try again later. I AGREE

    TIP: to embed Youtube clips, put only the encoded part of the Youtube URL, e.g. eBGIQ7ZuuiU between the tags.
     


  7. Garbage Mouth

    Garbage Mouth Senior member

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    I always thought using PEMDAS was the only way to solve problems like these. If you use it on this, you end up with 2 as your answer. Or is it something else...?
     


  8. RedScarf7

    RedScarf7 Senior member

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    Notation is sloppy, but as given the answer is 288. PEMDAS says the brackets would be resolved first, than multiplication and division would be resolved from left to right.

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

    Answer would be 2 if it was written 48÷(2(9+3)). Could also argue that the answer would be 2 if it was given as 48/2(9+3) as this suggests that 2(9+3) is the denominator.
     


  9. yjeezle

    yjeezle Senior member

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  10. Dakota rube

    Dakota rube Senior member

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    Granted, I have not taken a math class since before the invention of the electronic calculator, but I'd solve the problem to 2.
     


  11. Harold falcon

    Harold falcon Senior member

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    Notation is sloppy, but as given the answer is 288. PEMDAS says the brackets would be resolved first, than multiplication and division would be resolved from left to right.

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

    Answer would be 2 if it was written 48÷(2(9+3)). Could also argue that the answer would be 2 if it was given as 48/2(9+3) as this suggests that 2(9+3) is the denominator.


    I back this.
     


  12. MrG

    MrG Senior member

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    Notation is sloppy, but as given the answer is 288. PEMDAS says the brackets would be resolved first, than multiplication and division would be resolved from left to right.

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

    Answer would be 2 if it was written 48÷(2(9+3)). Could also argue that the answer would be 2 if it was given as 48/2(9+3) as this suggests that 2(9+3) is the denominator.


    This is how I solved it, and I agree with your comments on notation.
     


  13. yoyodunno

    yoyodunno Senior member

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    pemdas http://www.purplemath.com/modules/orderops.htm 48÷2(9+3) = 2 or 288 1) this needs to be read: 48 / 2(9+3) - why? 2(9+3) is a single denominator value. 2) 48 / 24 --> 2
    If it was (2(2+3)) as the guy showed earlier the final answer would be two. The answer as written is 288, it's not rocket science.
     


  14. Pantisocrat

    Pantisocrat Senior member

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    answer is 2
     


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