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Thread: What's the next number in the sequence....?

  1. #1
    Join Date
    Sep 2007
    Posts
    2

    Default What's the next number in the sequence....?

    3, -4, 7, -12, 19...

    And please explain how you got it. Thanks!

  2. #2
    Join Date
    Sep 2007
    Posts
    1

    Default

    it has got to be -28

    u know that afterevery positive number there is negative number like after 3 theres -4 and then 7 and then -12 and after that 19 so the next one has got to be a negative number

    also 3+1=4

    4+3=7

    7+5= 12

    12+7= 19

    and then 19+9=28

    so -28

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