Quantitative Aptitude: Number Series Set 54

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

  1. 28, 48, 24, 58, 16, 64, 4
    A) 48
    B) 24
    C) 58
    D) 16
    E) 64
    View Answer
     Option C
    Pattern: 
    Double difference series:
    +20,      -24,        +30,          -38,           + 48           – 60
    .       +4         +6             +8              +10           +12
  2. 8, 11, 17, 32.5, 65, 165.5, 498.5
    A) 11
    B) 17
    C) 32.5
    D) 65
    E) 165.5
    View Answer
     Option C
    Pattern:
    8 * 0.5 + 7 = 11
    11 * 1 + 6 = 17
    17 * 1.5  + 5 = 30.5
    30.5 * 2 + 4 = 65
    65 * 2.5 + 3 = 165.5
    165.5 * 3 + 2 = 498.5
  3. 4, 6, 16, 80, 405, 2424, 16975
    A) 6
    B) 16
    C) 80
    D) 405
    E) 2424
    View Answer
     Option B
    Pattern: 
    ×2 – 2, ×3 + 3, ×4 – 4, ×5 + 5, ×6 – 6, ×7 + 7
  4. 15, 19, 27, 26, 41, 27, 57
    A) 19
    B) 27
    C) 26
    D) 41
    E) 27
    View Answer
     Option E
    Pattern: 
    15………. 19……….. 27…………. 26………. 41……….. 31………….57
    .     +4          +8              -1             +15          -10                  +26
    .          +22            -32            +42            -52           +62
  5. 375, 75, 30, 18, 14.4, 15.6, 17.28
    A) 75
    B) 30
    C) 18
    D) 14.4
    E) 15.6
    View Answer
     Option E
    Pattern: 
    × 0.2, × 0.4, × 0.6, × 0.8, × 1.0, × 1.2
  6. 3, 10, 32, 68, 152, 324, 672
    A) 20
    B) 32
    C) 68
    D) 152
    E) 324
    View Answer
     Option B
    Pattern:
    ×2 + 4, ×2 + 8, ×2 + 12, ×2 + 16, ×2 + 20, ×2 + 24
  7. 12, 29, 58, 69, 94, 109, 150
    A) 29
    B) 58
    C) 69
    D) 94
    E) 109
    View Answer
     Option D
    Pattern: 
    +17       +29         +11        +35            +5             +41
    .   +12          -18         +24        -30            +36                   
  8. 1, 2, 5, 16, 76, 622
    A) 2
    B) 5
    C) 16
    D) 98
    E) 622
    View Answer
     Option E
    Pattern:
    1 × 0.5 + 1.5 = 2,
    2 × 1 + 3 = 5,
    5 × 2 + 6 = 16,
    16 × 4 + 12 = 76,
    76 × 8 + 24 = 632
  9. 9, 19, 49, 119, 249, 579, 1209
    A) 19
    B) 49
    C) 119

    D) 249
    E) 579
    View Answer
     Option D
    Pattern: 
    *2 + 1, *2 + 11, *2 + 21, *2 + 31,*2 + 41, *2 + 51
  10. 970, 470, 238, 100, 41, 13.5, 1.75
    A) 470
    B) 238
    C) 100
    D) 41
    E) 13.5
    View Answer
     Option B
    Pattern: 
    (970-30) ÷ 2 = 470
    (470-26) ÷ 2 = 222
    (222-22) ÷ 2 = 100
    (100-18) ÷ 2 = 41
    (41-14) ÷ 2 = 13.5
    (13.5-10) ÷ 2 = 1.75

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4 Thoughts to “Quantitative Aptitude: Number Series Set 54”

  1. Always smile

    thanku az:)
    plz check 8th question@mod

      1. Always smile

        thnku mam:)

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

    done

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