Aptitude Questions – Number Series Set 59

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Welcome to Online Quantitative Aptitude Section in AffairsCloud.com. Here we are creating question sample in Number Series based on latest pattern, which is common for SBI,IBPS, RBI,LIC, NICL and other  competitive exams.

1. 6, 7, 12, 26, ?, 205.5
   1. 57.5
   2. 47.5
   3. 67.5
   4. 37.5
   5. 27.5
   
   Answer & Explanation

   Answer – 3. 67.5
   Explanation :
   6 * 1 + 1 = 7
   7 * 1.5 + 1.5= 12
   12 * 2 + 2 = 26
   26 * 2.5 + 2.5 = 67.5
   67.5 * 3 + 3 = 205.5
   
   
2. 10 5 5 10 40 ?
   1.350
   2.320
   3.290
   4.230
   5.240
   
   Answer & Explanation

   Answer – 2.320
   Explanation :
   10 * 0.5 = 5
   5 * 1 = 5
   5 * 2 = 10
   10 * 4 = 40
   40 * 8 = 320
   
   
3. 2, 4, 14, ?, 90, 172
   1.30
   2.20
   3.50
   4.40
   5.60
   
   Answer & Explanation

   Answer – 4.40
   Explanation :
   2 + 1² + 1 = 4
   4 + 3² + 1= 14
   14 + 5² + 1= 40
   
   
4. 2, 4, 10, 26, ?, 229
   1.73
   2.82
   3.64
   4.71
   5.80
   
   Answer & Explanation

   Answer – 1.73
   Explanation :
   2 * 1 + 2 = 4
   4* 1.5 + 4 = 10
   10 * 2 + 6 = 26
   26 * 2.5 + 8 = 73
   73 * 3 + 10 = 229
   
   
5. 4, ?, 26, 63, 128, 229
   1.9
   2.5
   3.6
   4.7
   5.2
   
   Answer & Explanation

   Answer – 1.9
   Explanation :
   4 + 2² + 1= 9
   9 + 4² + 1= 26
   26 + 6² + 1= 63……..
   
   
6. 6, 5, 8, ?, 90, 449
   1.23
   2.26
   3.38
   4.24
   5.14
   
   Answer & Explanation

   Answer – 1.23
   Explanation :
   6*1 – 1 = 5
   5*2 – 2 = 8
   8*3 – 1 = 23
   
   
7. 3, 2, 14, 35, 107, ?
   1.232
   2.218
   3.222
   4.225
   5.242
   
   Answer & Explanation

   Answer – 3.222
   Explanation :
   3 + 1³ – 2 = 2
   2 + 2³ + 4 = 14
   14 + 3³ – 6 = 35
   35 + 4³ + 8 = 107
   
   
8. 2, 5, 18, 49, 154, ?
   1.475
   2.470
   3.465
   4.453
   5.455
   
   Answer & Explanation

   Answer – 4.453
   Explanation :
   2 * 3 – 1 = 5
   5 * 3 + 3 = 18
   18 * 3 – 5 = 49
   49 * 3 + 7 = 154
   154 * 3 – 9 = 453
   
   
9. 4, ?, 16, 26, 60, 110
   1.6
   2.5
   3.7
   4.8
   5.9
   
   Answer & Explanation

   Answer – 1.6
   Explanation :
   4*2 – 2 = 6
   6*2 + 4 = 16
   16*2 – 6 = 26
   
   
10. 6, 8, 12, 42, 160, ?
    1.870
    2.840
    3.850
    4.810
    5.820
    
    Answer & Explanation

    Answer – 4.810
    Explanation :
    6 * 1 + 2 = 8
    8 * 2 – 4 = 12
    12 * 3 + 6 = 42
    42 * 4 – 8 = 160
    160 * 5 + 10 = 810