Some numbers are arranged in a particular rule or order or logic then those Numbers are in Series.Based on various type of Question asked in different competitive Exams.We divided the Series into Three types.
- 1. Numbers series
- 2. Letter Series
- 3. Repeated Series
TYPES OF SERIES
- Natural Numbers: 1,2,3,4………
- Evennumbers: 2,4,6,8,10………
- Odd numbers: 1,3,5,7,9,11………
- Prime numbers: 2,3,5,7,11,13,……
Increasing Series
- a) Addition Series
- b) Product Series
Decreasing Series
- a) Sub traction Series
- b) Division Series
- Square Series(n2)
- Cube Series(n3)
COMBINATION SERIES
n2+1,n2-1,n3+1,n3-1,n2+n,n2-n,n3+n,n3-n,×n+1,×n-1,×n+n,×n-n,n3+n2,n3-n2….etc
In present exams, two models of number series are given.
Missing term: In this series one term will be missing. Based on the logic of the other we have to find out the missing term.
Wrong number: In this series.one term will be given wrong. We have to find out that wrong number.
Directions(1-20):
In these questions, a number series is given. Find out the missing number.
1) 18, 10, 8, 9, 11.5, ?
A. 14.75
B. 10.75
C. 18.75
D. 19.75
E. 20.75
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2) 6 4 6 12 22 ?
A. 26
B. 36
C. 86
D. 66
E. 46
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3) 20, 39, 74, ?, 262, 499
A. 146
B. 169
C. 166
D. 139
E. 129
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4) 15, 32, 60, 122, 240, ?
A. 362
B. 488
C. 482
D. 364
E. 382
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5) 14, 12, 28, 78, 320, ?
A. 1450
B. 1590
C. 1440
D. 1810
E. 1690
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6) 31, 16, 10, 14, 38.5, ?
A. 167.25
B. 177.25
C. 147.25
D. 174.25
E. 185.25
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7) 25, 25, 37, 57, 113, ?
A. 202
B. 207
C. 185
D. 195
E. 190
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8) 18, 20, 40, 70, 142, ?
A. 232
B. 254
C. 188
D. 196
E. 240
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9) 720, 520, 336, 222, 120, ?
A. 78
B. 68
C. 76
D. 56
E. 58
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10) 72, 72, 42, 42, 20, ?
A. 30
B. 40
C. 50
D. 20
E. 10
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11) 14, 8, 6, 6, 7, ?
A. 6.5
B. 7.5
C. 8.5
D. 9.5
E. None of these
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12) 6, 13, 20, 65, 256, ?
A. 1283
B. 1756
C. 2786
D. 2686
E. None of these
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13) 24, 28, 40, ?, 88, 124
A. 40
B. 60
C. 66
D. 35
E. None of these
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14) 15, 8, 7, 16, 60, ?
A. 362
B. 488
C. 388
D. 364
E. None of these
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15) 19, 23, 40, 70, 113, ?
A. 145
B. 169
C. 144
D. 381
E. None of these
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16) 12, 6.5, 7.5, 12.75, 27.5, ?
A. 70.25
B. 73.25
C. 71.25
D. 74.25
E. None of these
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17) 965, 622, 406, 281, 217, ?
A. 170
B. 180
C. 190
D. 160
E. None of these
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18) 18, 22, 35, 121, 459, ?
A. 2331
B. 2531
C. 1509
D. 1459
E. None of these
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19) 10, 66, 325, 1304, 3909, ?
A. 7850
B. 7820
C. 7460
D. 7560
E. None of these
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20) 20, 119, 592, 2363, ?
A. 7086
B. 7082
C. 7087
D. 7085
E. None of these
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21) 14 6 4 4 8 ?
A. 26
B. 32
C. 46
D. 27
E. None of these
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22) 6 16 45 184 917 ?
A. 5506
B. 4756
C. 5786
D. 5686
E. None of these
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23) 24 28 19 35 10 ?
A. 46
B. 56
C. 66
D. 65
E. None of these
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24) 15 22 36 64 ? 232
A. 120
B. 140
C. 180
D. 150
E. None of these
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25) 19 23 14 30 5 ?
A. 45
B. 41
C. 51
D. 35
E. None of these
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26) 12, 8, 16, 48, 184, ?
A. 560
B. 420
C. 860
D. 550
E. None of these
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27) 12 19 33 61 ? 229
A. 117
B. 113
C. 107
D. 163
E. None of these
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28) 18, 8, 6, 8, 22 ?
A. 125
B. 100
C. 150
D. 145
E. None of these
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29) 5 12 33 136 675 ?
A. 3850
B. 3950
C. 3460
D. 4056
E. None of these
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30) 20, 10, 12, 24, 75, ?
A. 320.5
B. 325.5
C. 330.5
D. 335.5
E. None of these
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31) 12, 19, 35, 59, 90, ?
A. 126
B. 132
C. 146
D. 127
E. None of these
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32) 4, 10, 27, 112, 555, ?
A. 3336
B. 4756
C. 3786
D. 3686
E. None of these
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33) 6, 14, 45, 184, 925, ?
A. 4596
B. 5556
C. 6756
D. 6556
E. None of these
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34) 11, 20, 38, 74, ?
A. 146
B. 164
C. 182
D. 150
E. None of these
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35) 15,21,38,65,101 ?
A. 145
B. 150
C. 155
D. 130
E. None of these
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36) 13, 21, 37, 69, ?, 261
A. 156
B. 133
C. 163
D. 173
E. None of these
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37) 18 23 36 56 82 ?
A. 117
B. 113
C. 107
D. 163
E. None of these
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38) 25, 29, 20, 36, 11 ?
A. 47
B. 57
C. 67
D. 37
E. None of these
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39) 6 14 39 160 795 ?
A. 4776
B. 4263
C. 4463
D. 4564
E. None of these
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40) 22 10 8 12 40 ?
A. 304
B. 634
C. 264
D. 164
E. None of these
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