Aptitude Questions: Number Series Set 52

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. 6 15 48 171 ? 3645
   A. 716
   B. 736
   C. 746
   D. 720
   E. None of these
   
   Answer & Explanation

   Answer – D. 720
   Explanation :
   (6 * 1) + (1 * 9) = 15
   (15 * 2) + (2 * 9)= 48
   (48 * 3) + (3 * 9)= 171
   (171 * 4) + (4 * 9) = 720
   (720 * 5) + (5 * 9) = 3645
   
   
2. 5 3 4 ? 17 45
   A. 7.5
   B. 4.5
   C. 6.5
   D. 8.5
   E. None of these
   
   Answer & Explanation

   Answer – A. 7.5
   Explanation :
   5 * 0.5 + 0.5 = 3
   3 * 1 + 1 = 4
   4 * 1.5 + 1.5 = 7.5
   7.5 * 2 + 2 = 17
   17 * 2.5 + 2.5 = 45
   
   
3. 4 11 36 103 ? 939
   A. 345
   B. 316
   C. 375
   D. 355
   E. None of these
   
   Answer & Explanation

   Answer – B. 316
   Explanation :
   4 * 3 – 1 = 11
   11 * 3 + 3 = 36
   36 * 3 – 5 = 103
   103 * 3 + 7 = 316
   316 * 3 – 9 = 939
   
   
4. 6 13 41 ? 216 391 
   A. 123
   B. 104
   C. 153
   D. 113
   E. None of these
   
   Answer & Explanation

   Answer – B. 104
   Explanation :
   6 + 7 * 1² = 13
   13 + 7 * 2² = 41
   41 + 7 * 3² = 104…..
   
   
5. 715 524 333 ? 119 68 
   A. 224
   B. 232
   C. 242
   D. 252
   E. None of these
   
   Answer & Explanation

   Answer – A. 224
   Explanation :
   9³ – 14 = 715
   8³ + 12 = 524
   7³ – 10 = 333……
   
   
6. 58 60 116 354 1408 ?  
   A. 6050
   B. 7050
   C. 7080
   D. 6070
   E. None of these
   
   Answer & Explanation

   Answer – B. 7050
   Explanation :
   58 * 1 + 2 = 60
   60 * 2 – 4 = 116
   116 * 3 + 6 = 354
   354 * 4 – 8 = 1408…..
   
   
7. 14, 78, 252, 620, ?, 2394
   A. 1340
   B. 1290
   C. 1470
   D. 1860
   E. None of these
   
   Answer & Explanation

   Answer – B. 1290
   Explanation :
   2^4 – 2, 3^4 – 3, 4^4 – 4, 5^4 – 5…
   
   
8. 5 15 38 ? 464 2422
   A. 240
   B. 420
   C. 150
   D. 120
   E. None of these
   
   Answer & Explanation

   Answer – D. 120
   Explanation :
   (5 * 1) + 10 = 15
   (15 * 2 ) + 8 = 38
   (38 * 3) + 6 = 120
   (120 * 4) + 4 = 484
   (484 * 5) + 2 = 2422
   
   
9. 8 18 51 208 1035 ?
   A. 6776
   B. 6263
   C. 6463
   D. 6216
   E. None of these
   
   Answer & Explanation

   Answer – D. 6216
   Explanation :
   8 * 2 + 2 = 18
   18 * 3 – 3 = 51
   51 * 4 + 4  = 208
   208 * 5 – 5  = 1035….
   
   
10. 24 11 9 14 48 ?  
    A. 368
    B. 334
    C. 364
    D. 324
    E. None of these
    
    Answer & Explanation

    Answer – A. 368
    Explanation :
    24 * 0.5 – 1 = 11
    11 * 1 – 2 = 9
    9 * 2 – 4 = 14
    14 * 4 – 8 = 48