Aptitude Questions: Number Series Set 41[IBPS PO Prelim 2016 Questions]

Hello Aspirants. Welcome to Online Quantitative Aptitude Section in AffairsCloud.com. Here we are creating question sample in Number Series, which is common for all the competitive exams. We have included Some questions that are repeatedly asked in bank exams !!!

Directions(1-10) : In these questions, a number series is given. Find out the missing number.

1. 14, 16, 23, 51, 114, ?
   A. 230
   B. 240
   C. 260
   D. 270
   E. 280
   

   Answer & Explanation

   Answer – B. 240
   Explanation :
   14 + 1³ + 1 = 16
   16 + 2³ – 1 = 23
   23 + 3³ + 1 = 51
   
   
2. 1500, 476, 220, 156,? 136
   A. 126
   B. 136
   C. 131
   D. 140
   E. 146
   

   Answer & Explanation

   Answer – D. 140
   Explanation :
   1500 – 32² = 476
   476 – 16² = 220
   220 – 8² = 156….
   
   
3. 19, 30, 23, 34, 27, ?
   A. 38
   B. 53
   C. 66
   D. 39
   E. 35
   

   Answer & Explanation

   Answer – A. 38
   Explanation :
   23 – 19 = 4
   34 – 30 = 4
   27 – 23 = 4…..
   
   
4. 16, 8.5, 9.5, 21, 88, ?
   A. 762
   B. 788
   C. 712
   D. 764
   E. 733
   

   Answer & Explanation

   Answer – C. 712
   Explanation :
   16*0.5 + 0.5 = 8.5
   8.5*1 + 1 = 9.5
   9.5*2 + 2 = 21…..
   
   
5. 13, 18, 32, 56, 91, ?
   A. 135
   B. 139
   C. 144
   D. 138
   E. 149
   

   Answer & Explanation

   Answer – D. 138
   Explanation :
   18 – 13 = 5
   32 – 18 = 14
   56 – 32 = 24; 14 – 5 = 9; 24 – 14 = 10
   
   
6. 17,30,21,34,25, ?
   A. 38
   B. 37
   C. 34
   D. 35
   E. 39
   

   Answer & Explanation

   Answer – A. 38
   Explanation :
   21 – 17 = 4
   34 – 30 = 4
   25 – 21 = 4….
   
   
7. 12, 6.5, 7.5, 17, 72, ?
   A. 582
   B. 584
   C. 586
   D. 566
   E. 578
   

   Answer & Explanation

   Answer – B. 584
   Explanation :
   12*0.5 + 0.5 = 6.5
   6.5*1 + 1 = 7.5
   7.5*2 + 2 = 17…..
   
   
8. 463,220,139,112, ? ,100
   A. 106
   B. 103
   C. 108
   D. 105
   E. 104
   

   Answer & Explanation

   Answer – B. 103
   Explanation :
   463 – 3⁵ = 220; 220 – 3⁴ = 139; 220 – 3³ = 139….
   
   
9. 11,16,34,66,113,?
   A. 178
   B. 168
   C. 174
   D. 176
   E. 158
   

   Answer & Explanation

   Answer – D. 176
   Explanation :
   16 – 11 = 5
   34 – 16 = 18
   66 – 34 = 32
   18 – 5 = 13; 32 – 18 = 14….
   
   
10. 31,33,40,68,131, ?
    A. 232
    B. 242
    C. 256
    D. 238
    E. 257
    

    Answer & Explanation

    Answer – E. 257
    Explanation :
    31 + 1³ + 1 = 33
    33 + 2³ – 1 = 40
    40 + 3³ + 1 = 68
    68 + 4³ – 1 = 131…