Complete the Following Series by Choosing the Correct Option:

39, 46, 60, 81, 109, ?, 186

  1. 138
  2. 142
  3. 136
  4. 144
Monis Rasool Professor Asked on 7th September 2015 in Reasoning Questions.
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  • 1 Answer(s)

    Answer: (4) 144

    Explanation:-
    39 + 1 x 7 = 39 + 7
    = 46,
    46 + 2 x 7 = 46 + 14
    = 60,
    60 + 3 x 7 = 60 + 21
    = 81,
    81 + 4 x 7 = 81 + 28
    = 109,
    Same as,
    109 + 5 x 7 = 109 + 35
    = 144

    Then, the missing number is 144.

    Hence, the answer is (4) 144.

    Anurag Mishra Professor Answered on 9th September 2015.
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