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6÷2(1+2)= ?

Discussion in 'BlackHat Lounge' started by MrSmith, May 1, 2011.

  1. MrSmith

    MrSmith Newbie

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    What answers do you guys get?

    9 or 1?
     
  2. bibirisca

    bibirisca Junior Member

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    Absolutely 1
     
    Last edited: May 1, 2011
  3. oxonbeef

    oxonbeef BANNED BANNED

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    Order of Operations
    Do things in Brackets First. Example:

    6 × (5 + 3) = 6 × 8 =
    48

    6 × (5 + 3) = 30 + 3 =
    33
    (wrong)
    Exponents (Powers, Roots) before Multiply, Divide, Add or Subtract. Example:

    5 × 22 = 5 × 4 =
    20

    5 × 22 = 102 =
    100
    (wrong)
    Multiply or Divide before you Add or Subtract. Example:

    2 + 5 × 3 = 2 + 15 =
    17

    2 + 5 × 3 = 7 × 3 =
    21
    (wrong)
    Otherwise just go left to right. Example:

    30 ÷ 5 × 3 = 6 × 3 =
    18

    30 ÷ 5 × 3 = 30 ÷ 15 =
    2
    (wrong)
    How Do I Remember It All ... ? BODMAS !

    B
    Brackets first
    O
    Orders (ie Powers and Square Roots, etc.)
    DM
    Division and Multiplication (left-to-right)
    AS
    Addition and Subtraction (left-to-right)
     
    Last edited: May 1, 2011
  4. breakpoint

    breakpoint Registered Member

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    I would think 1

    6/2(3)
    6/6
     
  5. Pluto $crillions

    Pluto $crillions Registered Member

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    What? Def 9. I don't understand how you can get 1.
     
  6. MrSmith

    MrSmith Newbie

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    Here it goes hah

    I say 1 too, but hey...Someone will come out with BODMAS rule > * math laws and say 9.
     
  7. calispawned

    calispawned Newbie

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    This is elementary. Plus google will do the dam problem for you if you type it in the search bar. NOOOOOBS
     
  8. breakpoint

    breakpoint Registered Member

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    yeah this is useless in the real world :)
     
  9. bibirisca

    bibirisca Junior Member

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    parentheses first - 6/2(1+2)
    now multiplication 2x3 - 6/2(3)
    division - 6/6

    And the answer is 1
     
  10. Pluto $crillions

    Pluto $crillions Registered Member

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    I thought division had the same priority in the order of operations haha, math never really was my thing unless its dollars and cents.
     
  11. myniche

    myniche Junior Member

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    math101 =1
     
  12. dalcacio2007

    dalcacio2007 Newbie

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    you have to use order of operations
    Parenthesis
    Exponents
    Multiplication/Division
    Addition/Subtraction

    Therefore
    6/2(1+2) = 6/2(3)
    Now we're left with multiplications and divisions which have the same priority, so we solve from left to right
    6/2 = 3
    3 * 3 = 9
     
  13. dalcacio2007

    dalcacio2007 Newbie

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    Nope, after solving the parenthesis all of them have the same priority therefore it ends up
    6/2*3
    then we solve from left to right, because division and multiplication have the same priority, therefore it is 9 :)
     
  14. ┼blackrat┼

    ┼blackrat┼ Senior Member

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    answer´s 9
     
  15. MrSmith

    MrSmith Newbie

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    Say you had a / b(c)

    How did you suddenly get a/b * c when it should have been 'a / bc' ?
     
  16. pauluk

    pauluk Registered Member

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    6÷2(1+2)=?

    6÷2=3 1+2=3 3x3=9

    That's the way i worked it out so its 9
     
  17. pilgrim

    pilgrim Junior Member

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    I've looked at this very carefully for some time now, and I think you'll find the correct answer is I don't give a fuck :D
     
    • Thanks Thanks x 1
  18. thegladiator

    thegladiator Regular Member

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    The answer is surely 1.
    First of all you need to open the bracket. Basic BODMASS rule applies here.
    6/2(1+2)
    6/2+4
    6/6
    Answer =1

    Remember 2(1+2) is one part and therefore (1+2) needs to get multiplied by 2 instead of adding 1+2 and then multiplying it with the remainder of 6/2

    HIDAYAKUMULLAH
     
  19. zone69

    zone69 Junior Member

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    answer is 1.

    You need to distribute the 2 first.

    6÷2(1+2)
    =6÷(2+4)
    =6÷6
    =1

    Look at the question as 6 OVER 2(1+2) which is what it really is which makes the answer more clear.
     
    Last edited: May 1, 2011
  20. thevil

    thevil Junior Member

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    Code:
    http://www.google.com/search?q=6%C3%B72(1%2B2)