Aptitude Questions: Number Series Set 35

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. Only one number is wrong which does not fit in the series. Find out the wrong number.

1. 5 4 10 27 ? 555
   A. 126
   B. 132
   C. 146
   D. 112
   E. None of these
   
   Answer & Explanation

   Answer – D. 112
   Explanation :
   5 * 1 – 1 = 4
   4 * 2 + 2 = 10
   10 * 3 – 3 = 27
   27 * 4 + 4 = 112…..
   
   
2. 3 5 11 61 419 ? 
   A. 3751
   B. 4751
   C. 3781
   D. 3681
   E. None of these
   
   Answer & Explanation

   Answer – C. 3781
   Explanation :
   3 * 1 + 2 = 5
   5 * 3 – 4 = 11
   11 * 5 + 6 = 61…..
   
   
3. 3 2 12 ? 20144
   A. 345
   B. 315
   C. 375
   D. 355
   E. None of these
   
   Answer & Explanation

   Answer – B. 315
   Explanation :
   (3 * 1³) – 1² = 2
   (2 * 2³) – 2² = 12
   (12 * 3³) – 3² = 315…..
   
   
4. 52 54 28 30 ? 18 10
   A. 14
   B. 16
   C. 18
   D. 15
   E. None of these
   
   Answer & Explanation

   Answer – B. 16
   Explanation :
   52 / 1 + 2 = 54
   54 / 2 + 1 = 28
   28 / 1 + 2 = 30…..
   
   
5. 5 261 389 ? 485 501 
   A. 453
   B. 592
   C. 509
   D. 529
   E. None of these
   
   Answer & Explanation

   Answer – A. 453
   Explanation :
   5 + 8 * 32 = 261
   261 + 8 * 16 = 389
   389 + 8 * 8 = 453….
   
   
6. 5 8 20 47 95 ? 278
   A. 120
   B. 170
   C. 150
   D. 110
   E. None of these
   
   Answer & Explanation

   Answer – B. 170
   Explanation :
   5 + 3 * 1² = 8
   8 + 3 * 2² = 20
   20 + 3 * 3² = 47…..
   
   
7. 990 737 506 ? 214 
   A. 247
   B. 347
   C. 257
   D. 267
   E. None of these
   
   Answer & Explanation

   Answer – B. 347
   Explanation :
   10³ – 10 = 990
   9³ + 8 = 737
   8³ – 6 = 506……
   
   
8. 1716, 990, 504, 210, 60, ?
   A. 8
   B. 2
   C. 6
   D. 4
   E. None of these
   
   Answer & Explanation

   Answer – C. 6
   Explanation :
   12^3 – 12, 10^3 – 10, 8^3 – 8, 6^3 – 6, 4^3 – 4, 2^3 – 2…
   
   
9. 15 151 1210 ? 29056
   A. 5463
   B. 4263
   C. 6263
   D. 7263
   E. None of these
   
   Answer & Explanation

   Answer – D. 7263
   Explanation :
   15 * 10 + 1  = 151
   151 * 8 + 2  = 1210
   1210 * 6 + 3  = 7263
   7263 * 4 + 4  = 29056
   
   
10. 250 254 517 1567  ?  
    A. 3096
    B. 9673
    C. 6967
    D. 6293
    E. None of these
    
    Answer & Explanation

    Answer – D. 6293
    Explanation :
    250 * 1 + 2²= 254
    254 * 2 + 3²= 517
    517 * 3 + 4²= 1567
    1567 * 4 + 5² = 6293