Aptitude Questions: Number Series Set 46

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

Direction: Q(1-5) Find the next number

1. 25, 35, 20, 45, ?
   A.32
   B.21
   C.10
   D.20
   E.None of these
   
   Answer & Explanation

   Answer – C.10
   Explanation :
   25 + 5 * 2 = 35
   35 – 5 * 3 = 20
   20 + 5 * 5 = 45
   45 – 5 * 7 = 10
   
   
   
2. 24, 10, 13, ?, 36
   A.8
   B.10.5
   C.12
   D.14.5
   E.16
   
   Answer & Explanation

   Answer –D.14.5
   Explanation :
   24*0.5 – 2 = 10
   10*1 + 3 = 13
   13*1.5 – 5 = 14.5
   14.5*2 + 7 = 36 
   
   
   
3. 8,81,651, ?, 15651
   A.3562
   B.3850
   C.3911
   D.4215
   E.None of these
   
   Answer & Explanation

   Answer – C.3911
   8 * 10 + 1  = 81
   81 * 8 + 3  = 651
   651 * 6 + 5  = 3911
   3911 * 4 + 7  = 15651
   
   
   
4. 110, 115, 224, ?, 2708
   A.716
   B.769
   C.679
   D.767
   E.None of these
   
   Answer & Explanation

   Answer – C.679
   Explanation :
   110*1+5 =115
   115*2-6 = 224
   224*3+7 = 679
   679*4-8 = 2708
   
   
   
5. 10, 22, 42, 78, ?
   A.112
   B.105
   C.118
   D.125
   E.None of these
   
   Answer & Explanation

   Answer – C.118
   Explanation :
   10 + 11 + 1= 22
   22+ 22 – 2 = 42
   42 + 33 + 3 = 78
   78 + 44 – 4 = 118
   
   
   

Directions(6-10) : 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.

6. 12, 19, 36, 93, 356
   A.19
   B. 36
   C.93
   D.356
   E.None of these
   
   Answer & Explanation

   Answer – B. 36
   Explanation :
   12* 1 + (1 * 7) = 19
   19* 2 – (2 * 6) = 26
   26 * 3 + (3 * 5) = 93
   93 * 4 – (4 * 4) = 356
   Correct Number: 26
   
   
   
7. 12, 14, 26, 62,143
   A.12
   B.14
   C.26
   D.62
   E.143
   
   Answer & Explanation

   Answer – E.143
   Explanation :
   12+1²+1³ = 14
   14+2²+2³ = 26
   26+3²+3³ = 62
   62+4²+4³ = 142
   Correct Number: 142
   
   
   
8. 166, 183, 141, 181, 100, 265
   A.183
   B.141
   C.181
   D.100
   E.None of these
   
   Answer & Explanation

   Answer – C.181
   Explanation :
   166+17*1 = 183
   183-21*2 = 141
   141 + 25*3 = 216
   216-29*4 = 100
   100+33*5 = 265
   Correct Number: 216
   
   
   
9. 5, 10, 23, 73, 297
   A.5
   B.10
   C.73
   D.297
   E.None of these
   
   Answer & Explanation

   Answer – A.5
   Explanation :
   8 * 1 + 2 = 10
   10 * 2 + 3 = 23
   23 * 3 + 4 = 73
   73 * 4 + 5 = 297
   Correct Number:8
   
   
   
10. 10, 13, 25, 62,100
    A.10
    B.13
    C.62
    D.100
    E.None of these
    
    Answer & Explanation

    Answer – C.62
    Explanation :
    10+ 3 * 1² = 13
    13 + 3 * 2² = 25
    25 + 3 * 3² = 52
    Correct Number: 52