Verified Answer :

  1. I arrived at this conclusion because of the following:

    29, 38 The difference is 9 between 29, and 38.
    3, 8 The difference is 5 between 3, and 8. 
    14, 15 The difference is 1 between 14, and 15.
    The pattern is 9-4= 5 and 5-4=1
    So I have 9, 5, 1, a difference of 4. 


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