Quantitative Aptitude: Number Series Set 10

Directions: The following series are based on a specific pattern. In these series one number is wrong, find that odd one.

1. 42, 47, 35, 56, 24, 72, 9
   A) 35
   B) 56
   C) 24
   D) 72
   E) 47
   
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   Option D
   Pattern:
   
2. 6, 22, 34, 78, 146, 305, 594
   A) 32
   B) 22
   C) 305
   D) 146
   E) 594
   
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   Option C
   Pattern:
   6*2 + 10 = 22
   22*2 – 10 = 34
   34*2 + 10 = 78
   78*2 – 10 = 146
   146*2 + 10 = 302
   302*2 – 10 = 594
   
3. 4, 4, 15, 74, 524, 4724, 51974
   A) 51974
   B) 15
   C) 74
   D) 524
   E) 4724
   
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   Option B
   Pattern:
   4*1 + 0 = 4
   4*3 + 2 = 14
   14*5 + 4 = 74
   74*7 + 6 = 524
   524*9 + 8 = 4724
   4724*11 + 10 = 51974
   
4. 3, 5, 13, 39, 177, 891
   A) 177
   B) 13
   C) 5
   D) 39
   E) 891
   
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   Option D
   Pattern:
   3*1 + 2 = 5
   5*2 + 3 = 13
   13*3 + 4 = 43
   43*4 + 5 = 177
   177*5 + 6 = 891
   
5. 5, 10, 19, 37, 76, 130, 225
   A) 10
   B) 130
   C) 19
   D) 37
   E) 76
   
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   Option E
   Pattern:
   
6. 3, 7, 12, 32, 57, 93, 142
   A) 7
   B) 12
   C) 32
   D) 57
   E) 93
   
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   Option B
   Pattern:
   3 + 2² = 7
   7 + 3² = 16
   16 + 4² = 32
   32 + 5² = 57
   57 + 6² = 93
   93 + 7² = 142
   
7. 2, 13, 38, 130, 522, 2625
   A) 2625
   B) 522
   C) 38
   D) 130
   E) 13
   
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   Option D
   Pattern:
   2*1 + 11 = 13,
   11*2 + 12 = 38,
   38*3 + 13 = 127,
   127*4 + 14 = 522,
   522*5 = 2625
   
8. 2162, 1073, 364, 95, 24, 10
   A) 1073
   B) 95
   C) 10
   D) 364
   E) 24
   
   View Answer

   Option A
   Pattern:
   2162/2 +2 = 1083
   1083/3 +3 = 364
   364/4 +4 = 95
   95/5 +5 = 24
   24/6 +6 = 10
   
9. 11, 7, 9, 16, 35, 87, 277
   A) 7
   B) 35
   C) 87
   D) 16
   E) 9
   
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   Option C
   Pattern:
   11*0.5 + 1.5 = 7
   7*1 + 2 = 9
   9*1.5 + 2.5 = 16
   16*2 + 3 = 35
   35*2.5 + 3.5 = 91
   91*3 + 4 = 277
   
10. 4, 10, 22, 49, 95, 283, 563
    A) 95
    B) 283
    C) 49
    D) 10
    E) 22
    
    View Answer

    Option E
    Pattern:
    4*3 – 2 = 10,
    10*2 – 3 = 17,
    17*3 – 2 = 49,
    49*2 – 3 = 95
    95*3 – 2 = 283,
    283*2 – 3 = 563