Fill in the blank space for the given series with the correct alternative.
$3, 7, 15, 31, 63, (\dots)$

  • A
    $92$
  • B
    $127$
  • C
    $115$
  • D
    $131$

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Similar Questions

Study the following arrangement carefully and answer the questions given below:
$R, 4, E, J, 5, T, 1, A, M, Q, 3, 8, N, I, K, 7, W, F, 6, D, 9, U, 2, Y, V$
Four of the following five are alike in a certain way based on their positions in the above arrangement and so form a group. Which is the one that does not belong to this group?

Fill in the blank space for the given series with the correct alternative.
$1, 4, 9, 16, 25, (\ldots)$

Find out the wrong term from the given series:
$380, 188, 92, 48, 20, 8, 2$

Choose the correct alternative to complete the series: $a . c a . b e . b c c . . . b c a$

What will come in place of the question mark $(?)$ in the following alphabet series?
$CD, FG, JK, ?, UV$

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