Quantitative Aptitude: Number Series Set 15

Shubhra

Directions: What will come in place of (?) in following Number series following a certain pattern?

  1. 8, 14, 48, 270, 2128, ?
    A) 23140
    B) 20480
    C) 21150
    D) 23520
    E) 21230
    View Answer
    Option E
    Pattern:
    8×2 – 2 = 14
    14×4 – (2+6) = 48
    48×6 – (8+10) = 270
    270×8 – (18+14) = 2128
    2128×10 – (32+18) = 21230
  2. 2, 48, 265, 1076, 3237, ?
    A) 5569
    B) 6478
    C) 5411
    D) 6410
    E) 5882
    View Answer
    Option B
    Pattern:  
    2×6 + 62 = 48
    48×5 + 52 = 265
    265×4 + 42 = 1076
    1076×3 + 32 = 3237
    3237×2 + 22 = 6478
     
  3. 1010, 785, 616, 495, ?, 365
    A) 412
    B) 408
    C) 414
    D) 420
    E) 432
    View Answer
    Option C
    Pattern:
    1010 – 152 = 785
    785 – 132 = 616
    616 – 112 = 495
    495 – 92 = 414
    414 – 72 = 365
     
  4. 970, 470, 222, 100, 41, ?
    A) 15.5
    B) 10.5       
    C) 23.5
    D) 13.5
    E) 18.5
    View Answer
    Option D
    Pattern:
    (970-30) ÷ 2 = 470      
    (470-26) ÷ 2 = 222
    (222-22) ÷ 2 = 100   
    (100-18) ÷ 2 = 41
    (41-14) ÷ 2 = 13.5  
  5. 8, 16, 48, 168, 704, ?
    A) 2695
    B) 3560
    C) 3240
    D) 2538
    E) 2233
    View Answer
    Option B
    Pattern:
    8×1 + 1×8 = 16
    16×2 + 2×8  = 48
    48×3 + 3×8  = 168
    168×4 + 4×8  = 704
    704×5 + 5×8  = 3560
  6. 4, 21, 120, 595, 2376, ?
    A) 7125
    B) 6129
    C) 5257
    D) 4523
    E) 3652
    View Answer
    Option A
    Pattern:
    4×7 – 7 = 21
    21×6 – 6 = 120
    120×5 – 5 = 595
    595×4 – 4 = 2376
    2376×3 – 3 = 7125
  7. 444, 220, 108, 52, ?, 10
    A) 17
    B) 28
    C) 31
    D) 24
    E) 35
    View Answer
    Option D
    Pattern:
    (444 – 4) ÷ 2 = 220
    (220 – 4) ÷ 2 = 108
    (108 – 4) ÷ 2 = 52
    (52 – 4) ÷ 2 = 24          
    (24 – 4) ÷ 2 = 10
  8. 21, 44, 90, 159, 251, ?
    A) 376
    B) 324
    C) 366
    D) 402
    E) 444
    View Answer
    Option C
    Pattern:
    21 + 23 = 44
    44 + 46 = 90
    90 + 69 = 159
    159 + 92 = 251
    251 + 115 = 366
  9. 4, 6, 16, 30, 88, ? 
    A) 153
    B) 121
    C) 149
    D) 174
    E) 162
    View Answer
    Option D
    Pattern:
    4×2 – 2 = 6
    6×3 – 2 = 16
    16×2 – 2 = 30
    30×3 – 2 = 88
    88×2 – 2 = 174
  10. 2, 3, 4, 15, 56, 285, ?
    A) 1704
    B) 1888
    C) 1532
    D) 1325
    E) 1265
    View Answer
    Option A
    Pattern:
    2 × 1 + 1 = 3
    3 × 2 – 2 = 4
    4 × 3 + 3 = 15        
    15 × 4 – 4 = 56
    56 × 5 + 5 = 285
    285 × 6 – 6 = 1704

Click here for other sets on Number Series

 

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17 Thoughts to “Quantitative Aptitude: Number Series Set 15”

  1. MiMi
    April 5, 2017 at 7:20 pm

    thank u mam…

  2. MiMi
    April 5, 2017 at 7:21 pm

    4n0. question ka ansr option D hoga 13.5

  3. MiMi
    April 5, 2017 at 7:21 pm

    mam 1no.series ka pattern explain kar do pls…

    1. kumkum ahuja
      April 5, 2017 at 11:16 pm

      2+6=8 so next me 8+10 aayega… Next number me diff 4 ka aayega sb mein… 8+10=18 so uske baad 18+14 aayega and so on

      1. •?((¯°·._.• ąʍβɨЌą •._.·°¯))؟•
        April 6, 2017 at 12:16 am

        waah kumkum :)) goood

        1. kumkum ahuja
          April 6, 2017 at 11:24 am

          ty:)ambii

      2. Shivani ( શિવાની)
        April 6, 2017 at 10:27 am

        Behad khoobsurat naam h

        1. kumkum ahuja
          April 6, 2017 at 11:24 am

          thanks:)

      3. MiMi
        April 6, 2017 at 7:33 pm

        ty kumkum

        1. kumkum ahuja
          April 7, 2017 at 12:31 am

          🙂

    2. Shubhra
      April 6, 2017 at 2:20 am

      Kumkum replied.
      Got now?

      1. MiMi
        April 6, 2017 at 7:30 pm

        ok mam i ill check it..

  4. Yogi ji
    April 5, 2017 at 8:26 pm

    Great

  5. jaga
    April 6, 2017 at 7:14 pm

    thank u

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