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Find the next letter: A,C,F,J

  1. Oct 25, 2003 #1
    Find the next letter:
    A,C,F,J
     
  2. jcsd
  3. Oct 25, 2003 #2
    A C F J _____________?

    The answer is O. This is because A = 1, C = 3, F = 6, J = 10.

    The series: 1 3 6 10. The difference between each no is increasing by one. i.e, 3-1 = 2; 6-3 = 3; 10-6 = 4; the next difference is 5 and thus the no is 15. The alphabet corresponding to 15 is O.


    Sridhar
     
  4. Oct 26, 2003 #3
    sridhar_n with the point!
     
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