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Lê Quốc Trần Anh Coordinator

19/04/2018 at 12:12
Answers
4
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Find the number missing: 2 -> 4 -> 7 -> 11 -> 16 -> ???




    List of answers
  • ...
    Lê Anh Duy 19/04/2018 at 15:34

    We have:

    2 = 1 + 1

    4 = (1 + 2) + 1

    7 = (1 + 2 + 3) + 1

    11 = (1 + 2 + 3 + 4) + 1

    16 = (1 + 2 + 3 + 4 + 5) + 1

    SO THE NEXT NUMBER IS: (1 + 2 + 3 + 4 + 5 + 6) + 1 = 22

    P/s: Your question is incorrect

    It must be: "FIND THE MISSING NUMBER" or "FIND THE NUBER THAT IS MISSING", not number missing

    Lê Quốc Trần Anh selected this answer.
  • ...
    ¤« 20/04/2018 at 13:23

    We have:

    2 = 1 + 1

    4 = (1 + 2) + 1

    7 = (1 + 2 + 3) + 1

    11 = (1 + 2 + 3 + 4) + 1

    16 = (1 + 2 + 3 + 4 + 5) + 1

    SO THE NEXT NUMBER IS: (1 + 2 + 3 + 4 + 5 + 6) + 1 = 22

    P/s: Your question is incorrect

    It must be: "FIND THE MISSING NUMBER" or "FIND THE NUBER THAT IS MISSING", not number missing

  • ...
    HSG Phan Huy Toàn 21/04/2018 at 09:41

    We have : 

    2 = 1+1

    4 = (1 + 2) + 1

    7 = (1 + 2 + 3) + 1

    11 = (1 + 2 + 3 + 4) + 1

    16 = (1 + 2 + 3 +4 + 5) + 1

    => (1 + 2 + 3 + 4 + 5 + 6) + 1 = 22

    Answer : The next number is 22

  • ...
    Detecvite Conan 21/04/2018 at 09:51

    We have : 

    2 = 1+1

    4 = (1 + 2) + 1

    7 = (1 + 2 + 3) + 1

    11 = (1 + 2 + 3 + 4) + 1

    16 = (1 + 2 + 3 +4 + 5) + 1

    => (1 + 2 + 3 + 4 + 5 + 6) + 1 = 22

    Answer : 22


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