1,   2,  2,  5,  3, 10,  4,  17,  5, ?

  • Option 1)

    23

  • Option 2)

    25

  • Option 3)

    26

  • Option 4)

    27

  • Option 5)

    24

Answers (1)

1, 2, 2, 5, 3, 10, 4, 17, 5,?

The series is combination of two series at the alternate position. In first series, the pattern followed is +1.

In the second series, the pattern followed is +3, +5, +7, +9.

In the fist series, 1+1=2, 2+1= 3, 3+1= 4, 4+1= 5

In the second series, 2+3= 5, 5+5= 10, 10+7= 17, 17+9= 26

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