Quantitative Aptitude: Number Series Questions – Set 52 (Odd One Out)

Directions: The following series are based on a specific pattern. One number in the series is wrong. Find that odd one out.

  1. 2, 3, 2, 15, 42, 245, 1434
    A) 3
    B) 155
    C) 42
    D) 245
    E) 1434
    View Answer
     Option C
    Pattern: 
    2 × 1 + 1² = 3
    3 × 2 – 2² = 2
    2 × 3 + 3² = 15
    15 × 4 – 4² = 44
    44 × 5 + 5² = 245
    245 × 6 – 6² = 1434

  2. 72, 74, 68, 80, 50, 90, 48 
    A) 74
    B) 68
    C) 80
    D) 50
    E) 90
    View Answer
     Option D
    Pattern:
    ………+2………..-6………..+12………..-20…………+30………..-42
    ……………+4………+6………….+8………….+10……………+12
  3. 6, 6, 8, 14, 25, 46, 76
    A) 8
    B) 14
    C) 25
    D) 46
    E) 76
    View Answer
     Option C
    Pattern: 
    6 + (12 – 1)  = 6
    6 + (22 – 2)  = 8
    8 + (32 – 3) = 14
    14 + (42 – 4)  = 26
    26 + (52 – 5)  = 46
    46 + (62 – 6)  = 76
  4. 18, 82, 35, 69, 44, 60, 51
    A) 82
    B) 35
    C) 69
    D) 44
    E) 60
    View Answer
     Option B
    Pattern: 
    + 8², – 7², + 6², – 5², + 4², – 3²
  5. 2, 14, 25, 82, 335, 1682, 10099
    A) 14
    B) 25
    C) 82
    D) 335
    E) 1682
    View Answer
     Option A
    Pattern: 
    2 × 1 + 7 = 9
    9 × 2 + 7 = 25
    25 × 3 + 7 = 82
    82 × 4 + 7 = 335
    335 × 5 + 7 = 1682
    1682 × 6+ 7 = 10099
  6. 4, 12, 38, 76, 168, 356, 736
    A) 12
    B) 38
    C) 76
    D) 168
    E) 356
    View Answer
     Option B
    Pattern:
    ×2 + 4, ×2 + 8, ×2 + 12, ×2 + 16, ×2 + 20, ×2 + 24
  7. 13, 12, 26, 81, 320, 1605, 9624
    A) 12
    B) 26
    C) 81
    D) 320
    E) 1605
    View Answer
     Option A
    Pattern: 
    × 1 + 1, × 2 – 2, × 3 + 3, × 4 – 4, × 5 + 5, × 6 – 6
  8. 47, 53, 60, 71, 81, 127, 188
    A) 53
    B) 60
    C) 71
    D) 81
    E) 127
    View Answer
     Option D
    Pattern:
    ……..+6……….+7………+11……..+20…………+36……………+61
    ……………..+1………+4………+9………+16……………+25
  9. 13, 8, 11, 28, 129, 1016
    A) 8
    B) 11
    C) 28

    D) 129
    E) 1016
    View Answer
     Option D
    Pattern: 
    13× 0.5 + 1.5 × 1 = 8
    8 × 1 + 1.5 × 2 = 11
    11 × 2 + 1.5 × 4 = 28
    28 × 4 + 1.5 × 8 = 124
    124 × 8 + 1.5 × 16 = 1016
  10. 16, 39, 61, 81, 91, 105, 97
    A) 39
    B) 61
    C) 81
    D) 91
    E) 105
    View Answer
     Option D
    Pattern: 
    ……..+23………..+22……..+20………..+16……….+8……….-8
    ………………-1………….-2………..-4…………-8……………-16

Click here for more Number Series Questions

 

 

Related posts

6 Thoughts to “Quantitative Aptitude: Number Series Questions – Set 52 (Odd One Out)”

  1. karthik

    in 1st question that is 15 sir instead of 155… a small mistake..

  2. reena sharma

    Question 5 10092 is wrong

  3. TR!D!P

    in q.5 lst no should be 10099..

  4. ★´¯`★ $ţ¥ℓ๏жƶ şħùвħάм ★´¯`★

    Plz provide daily number series odd out

  5. Chotu D(mind) !! {NONSENSE}

    done..

Leave a Comment