Odd Man Out and Series


  1. 2, 5, 10, 17, 26, 37, 50, 64 ?
    1. 50
    2. 26
    3. 37
    4. 64

  1. View Hint View Answer Discuss in Forum

    The pattern is x2 + 1, where x = 1, 2, 3, 4, 5, 6, 7, 8 etc.

    Correct Option: D

    The pattern is x2 + 1, where x = 1, 2, 3, 4, 5, 6, 7, 8 etc. But 64 is out of pattern


  1. 331, 482, 551, 263, 383, 242, 111 ?
    1. 263
    2. 383
    3. 242
    4. 111

  1. View Hint View Answer Discuss in Forum

    The product of first and third digit is the middle one.

    Correct Option: B

    In each number except 383, the product of first and third digit is the middle one.



  1. 1, 2, 6, 15, 31, 56, 91 ?
    1. 31
    2. 91
    3. 56
    4. 15

  1. View Hint View Answer Discuss in Forum

    Add 12, 22, 32, 42, 52, 62 .

    Correct Option: B

    Add 12, 22, 32, 42, 52,62 .
    So, 91 is wrong.


  1. 25, 36, 49, 81, 121, 169, 225 ?
    1. 36
    2. 49
    3. 121
    4. 169

  1. View Hint View Answer Discuss in Forum

    The number are square of odd natural numbers, starting from 5 up to 15.

    Correct Option: A

    The number are square of odd natural numbers, starting from 5 up to 15. So, 36 is wrong.



  1. 56, 72, 90, 110, 132, 150 ?
    1. 72
    2. 110
    3. 132
    4. 150

  1. View Hint View Answer Discuss in Forum

    The number are 7 x 8, 8 x 9, 9 x 10, 10 x 11, 11 x 12, 12 x 13 .

    Correct Option: D

    The number are 7 x 8, 8 x 9, 9 x 10, 10 x 11, 11 x 12, 12 x 13 . So, 150 is wrong.