Aptitude Questions – Number Series Set 54

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 !!!

1. 5, 15, 65, 315, ?, 7815
   A. 1695
   B. 1935
   C. 1565
   D. 1685
   E. None of these
   

   Answer & Explanation

   Answer – C. 1565
   Explanation :
   5 * 5 – 10 = 15
   15 * 5 – 10 = 65
   65 * 5 – 10 = 315
   315 * 5 – 10 = 1565
   1565 * 5 – 10 = 7815
   
   
2. 8 18 28 90 356 ?
   A. 1782
   B. 1892
   C. 1652
   D. 1662
   E. None of these
   

   Answer & Explanation

   Answer – A. 1782
   Explanation :
   * 1 + 10
   * 2 – 8
   * 3 + 6
   
   
3. 2 12 52 162 332 ?
   A. 342
   B. 366
   C. 396
   D. 291
   E. None of these
   

   Answer & Explanation

   Answer – A. 342
   Explanation :
   2 * 5 + 2 = 12
   12 * 4 + 4 = 52
   52 * 3 + 6 = 162
   
   
4. 4 14 44 150 ? 3090
   A. 612
   B. 632
   C. 616
   D. 618
   E. None of these
   

   Answer & Explanation

   Answer – C. 616
   Explanation :
   4 * 1 + 10 * 1 = 14
   14 * 2 + 8 * 2 = 44
   44 * 3 + 6 * 3 = 150
   150 * 4 + 4 * 4 = 616
   616 * 5 + 2 * 5 = 3090
   
   
5. 2 51 87 112 128 137 ?
   A. 152
   B. 131
   C. 213
   D. 141
   E. None of these
   

   Answer & Explanation

   Answer – D. 141
   Explanation :
   2 + 7² = 51
   51 + 6² = 87
   87 + 5² = 112
   112 + 4² = 128
   128 + 3² = 137
   137 + 2² = 141
   
   
6. 5 8 8 10 13 ?
   A. 12
   B. 14
   C. 18
   D. 16
   E. None of these
   

   Answer & Explanation

   Answer – D. 16
   Explanation :
   *2 – 2
   /2 + 4
   *2 – 6
   
   
7. 7 23 55 109 191 ?
   A. 343
   B. 323
   C. 307
   D. 303
   E. None of these
   

   Answer & Explanation

   Answer – C. 307
   Explanation :
   2^3 – 1^2
   3^3 – 2^2
   4^3 – 3^2
   
   
8. 3 2 3 6 14 ?
   A. 46.5
   B. 36.5
   C. 35.5
   D. 45.5
   E. None of these
   

   Answer & Explanation

   Answer – E. None of these
   Explanation :
   3 * 0.5 + 0.5 = 2
   2 * 1.0 + 1.0 = 3
   3 * 1.5 + 1.5 = 6
   6 * 2 + 2 = 14
   14 * 2.5 + 2.5 = 37.5
   
   
   
9. 3 8 ? 76 235 696
   A. 49
   B. 26
   C. 27
   D. 22
   E. None of these

   Answer & Explanation

   Answer – C. 27
   Explanation :
   3 * 3 – 1 = 8
   8 * 3 + 3 = 27
   27 * 3 – 5 = 76
   76 * 3 + 7 = 235
   235 * 3 – 9 = 696
   
   
10. 6 13 24 51 98 ?
    A. 149
    B. 159
    C. 189
    D. 201
    E. None of these
    

    Answer & Explanation

    Answer – D. 201
    Explanation :
    6 * 2 + 1
    13 * 2 – 2
    24 * 2 + 3
    51 * 2 – 4
    98 * 2 + 5