Another Series Puzzle

#139

Which number will replace the question mark ? 

  Difficulty Level - 2/5

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  Solution : 

   71. (4*2 -1, 7*2-2, 12*2-3, 21*2-4, 38*2-5) 

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Series Puzzle

#138

Find the next two numbers in the series....

2, 11, 25, 44, 68, ........

  Difficulty Level - 2/5

  Update Your Answers : Click Here

  Solution : 

   97, 131 (First differences makes an Arithmetic progression with difference = 5)
  

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