Trending: Only for genius ?? 3 – 3 x 6 + 2 = ??


David Meego - Click for blog homepageCompletely off topic and maybe something that should have waited for a Friday Funny post, but I noticed this post trending on the Book of Face today.

What amazes me is that there is only one correct answer, but the comments are full of many, many different answers. How can so many people get it wrong?

Now, I am not saying that my answer is correct just because it is mine, but because it follows the rules and methodology that I was taught at primary (elementary) school.

So here is the question:

Maths_Question

Below is a poll for you to answer with a selection of the answers found on the Facebook post:

 

Now to help you, please make sure you remember the Order of Operations mnemonics you probably learnt at school (depending on terminology):

Mnemonic Meaning
BIDMAS Brackets, Indices, Division, Multiplication, Addition, Subtraction
BIMDAS Brackets, Indices, Multiplication, Division, Addition, Subtraction
BEDMAS Brackets, Exponents, Division, Multiplication, Addition, Subtraction
BEMDAS Brackets, Exponents, Multiplication, Division, Addition, Subtraction
BODMAS Brackets, Orders, Division, Multiplication, Addition, Subtraction
BOMDAS Brackets, Orders, Multiplication, Division, Addition, Subtraction
PIDMAS Parentheses, Indices, Division, Multiplication, Addition, Subtraction
PIMDAS Parentheses, Indices, Multiplication, Division, Addition, Subtraction
PEDMAS Parentheses, Exponents, Division, Multiplication, Addition, Subtraction
PEMDAS Parentheses, Exponents, Multiplication, Division, Addition, Subtraction
PODMAS Parentheses, Orders, Division, Multiplication, Addition, Subtraction
POMDAS Parentheses, Orders, Multiplication, Division, Addition, Subtraction

What also surprised me was how many people actually remembered the rules, but failed to apply them correctly!

Let’s see how many of you get this correct….

Have a look at the other posts in the series:

Enjoy

David

PS: Shouldn’t the question be using the plural of Genius? Is that Geniuses or Genii?

This article was originally posted on http://www.winthropdc.com/blog.

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23 thoughts on “Trending: Only for genius ?? 3 – 3 x 6 + 2 = ??

  1. I’m inclined to argue the solution to the actual post: The answer to the poll equation is -13, but the equation in the original post is different because you use two question marks to denote the solution. While one question mark is common when requesting a solution, two is not. The question mark, query, point of interrogation, or even Minkoswky’s mark would be representative of a symbolic factor relative to, in this case, a solution and value. Since the question mark is not being used in the body of the equation and/or being representative of a fractal slope(etc), it remains a symbolic factor specifically relative to the value of that solution. Two question marks would therefore represent the solution times itself…would they not??
    If each factor in an equation is represented by a value, whether it be a numerical factor already possessing value or a symbolic factor whose value needs to be determined, placing two question marks side by side should therefore imply an additional step. Unless “??” is representative of a factor on a chart, graph, or even a geometrical shape or angle, wouldn’t that become (?X?) or ?squared ? It wouldn’t be any different than ?a being simplified to ?(a), a polynomial before all the parentheses.
    Thoughts?

    Liked by 1 person

      • Hi Jonathon

        Please note that I did not create the original image and so cannot be blamed for the double question marks. Maybe they are questioning the question? 🙂

        Anyhow does ?? mean 2? or ?^2, is the answer half of -13 or the square root of -13 (which then involves complex numbers)?

        However, I think this is mute point because the question does not actually say to solve for ?, so we don’t need to get the answer back to a single question mark.

        With the number of people failing to use order of operations, or using order of operations and then failing to add a negative number adding complex numbers will just drive them to insanity.

        David

        PS: Your answer above is incorrect. It will not be -13 x -13 and even if it was -13 x -13 = 169 not -169. 🙂

        PPS: Make sure you also look at https://winthropdc.wordpress.com/2016/02/10/answer-only-for-genius-3-3-x-6-2/

        Like

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