1. |
A. 84
B. 126
C. 96
D. 108
Option B The pattern is +12,+24,+36,+48, . . . . |

2. |
Find the wrong number in the following series?1500, 1475, 1448, 1419, 1389, 1355, 1320
A. 1475
B. 1419
C. 1389
D. 1355
Option C 1389 is wrong one. It should be 1388. |

3. |
A. 108
B. 127
C. 112
D. 85
Option A The terms of the given series are 3*(1*1),3*(2*2),3*(3*3),3*(4*4), . . . . |

4. |
A. 65
B. 78
C. 81
D. 92
Option D The pattern is + 1*1,+ 2*2, +3*3, + 4*4,+ 5*5,+ 6*6, . . . . . . . |

5. |
Find out the wrong term in the series 83,92,85,90,85,88
A. 85
B. 88
C. 90
D. 92
Option A The correct pattern is +9,-7,+5,-3,+1 |

6. |
bc _ b _ c _ b _ ccb
A. c b c b
B. b b c b
C. c b b c
D. b c b c
Option A Here e 'bccb' repeated 3 times.b c c b | b c c b | b c c b |

7. |
A. Andaa
B. babda
C. dbanb
D. badna
Option A The series is abadna/abadna/abadna/ab. |

8. |
A. 4467
B. 4538
C. 4184
D. 4485
Option D Each term in the series is obtained by subtracting from the preceding term the number formed by the first three digits of preceding term |

9. |
Find the wrong number in the series.1, 2, 6, 15, 31, 56, 91
A. 31
B. 15
C. 56
D. 91
Option D The difference of the two consecutive numbers are 1, 4, 9, 16, 25, 35.This is clearly , Here 35 is wrong, So our wrong number is 91 |

10. |
Find the missing number in the following series
A. 16
B. 4
C. 8
D. 10
Option C 512/2 = 256 256/4 = 64 64/2 = 32 32/4 = 8. |

11. |
Look at this series: 31, 29, 24, 22, 17, . . .
A. 15
B. 14
C. 13
D. 12
Option A This is a simple alternating subtraction series, which subtracts 2, then 5. Rule = (first number - 2) (second number - 5) (third number - 2) (fourth number - 5)... Now The series is 31, 29, 24, 22, 17, . . . (31 - 2 = 29), (29 - 5 = 24), (24 - 2 = 22), (22 - 5 = 17), (17 - 2 = 15)... So the answer is a = 15. |

12. |
Look at this series: 14, 28, 20, 40, 32, 64, . . . What number should come next ?
A. 52
B. 56
C. 86
D. 98
Option B This is an alternating multiplication and subtracting series: First, multiply by 2 and then subtract 8. Rule = (1st no.) (1st x 2 = 2nd no.) (2nd - 8 = 3rd no.) (3rd x 2 = 4th no.).... Now (14) (14 x 2 = 28) (28 - 8 = 20) (20 x 2 = 40) (40 - 8 = 32) (32 x 2 = 64) (64 - 8 = 56)... So the answer is b = 56. |

13. |
1, 2, 3, 10, ____, 9802
A. 199
B. 999
C. 99
D. 298
Option C 12 + 1 = 2 22 - 1 = 3 32 + 1 = 10 102 - 1 = 99. |

14. |
18 21 25 18 29 33 18 What numbers should come next ?
A. 43 18
B. 41 44
C. 37 41
D. 38 41
Option C This is a simple addition series with a random number, 18, interpolated as every third number. |

15. |
A. 36
B. 45
C. 47
D. 51
Option B First difference is 6 and second is 12. But if we take third as 18, then fourth difference will be 24. Then 93 can not be the last term. So we have to take the difference as 6, 12, 24 and 48. So 21 + 24 = 45. |

16. |
Which is the number that comes next in the sequence :
A. 240
B. 290
C. 336
D. 504
Option C Clearly, the given series is 13 - 1, 23 - 2, 33 - 3, 43 - 4, 53 - 5, 63 - 6. |

17. |
How many terms are there in the series 201, 208, 215, ..., 369 ?
A. 23
B. 24
C. 25
D. 26
Option C (Use Arithmetic Progression) |

18. |
Look at this series: 544, 509, 474, 439, . . .
A. 420
B. 445
C. 404
D. 414
Option C This is a simple subtraction series. |

19. |
Look at this series: 2, 4, 6, 8, 10, . . .
A. 11
B. 12
C. 13
D. 14
Option B This is a simple addition series. |

20. |
Find the wrong number in the series :
A. 15
B. 24
C. 34
D. 48
Option C The difference between consecutive terms of the given series are respectively 5, 7, 9, 11 and 13. |

21. |
Look at this series: 80, 10, 70, 15, 60, . . .
A. 20
B. 25
C. 30
D. 35
Option A This is an alternating addition and subtraction series. |

22. |
Look at this series: 8, 22, 8, 28, 8, . . .
A. 9
B. 29
C. 32
D. 34
Option D This is a simple addition series with a random number, 8, interpolated as every other number. |

23. |
Look at this series: 2, 6, 18, 54, . . .
A. 162
B. 216
C. 148
D. 108
Option A This is a simple multiplication series. |

24. |
13, 39, 118, 356, 1071, 3217, __
A. 9656
B. 6459
C. 6355
D. 9651
Option A 13*3+0, 39*3+1, 118*3+2, 356*3+3, 1071*3+4, 3217*3+5, __ |

25. |
12, 35, 106, 317, 952, __
A. 2851
B. 2855
C. 1851
D. 1849
Option B 12*3 - 1, 35*3 + 1, 106*3 - 1, 317*3 + 1, 952, __The next number in the series is 952 * 3 - 1 = 2855. |

26. |
In the series 3, 9, 15, ...... what will be the 21st term?
A. 117
B. 121
C. 123
D. 129
Option C Clearly, 3 + 6 = 9, 9 + 6 = 15,..... |

27. |
13, 35, 57, 79, 911, ?
A. 1110
B. 1112
C. 1113
D. 1315
Option C The terms of the given series are numbers formed by joining together consecutive |

28. |
3, 15, ?, 63, 99, 143
A. 27
B. 35
C. 45
D. 56
Option B The terms of the given series are (22 - 1), (42 - 1),....., (82 - 1), (102 - 1), (122 - 1). |

29. |
Which term of the series 5, 10, 20, 40, ..... is 1280?
A. 10th
B. 9th
C. 8th
D. None of these
Option B Clearly, 5 x 2 = 10, 10 x 2 = 20, 20 x 2 = 40,..... |

30. |
JTU, __, UCF, BFM, JHU
A. OYZ
B. JCZ
C. OCF
D. JCZ
Option A The given series is a mixed series. Pattern for the first letter:J+5, O+6, U+7, B+8, J Pattern for the second letter:T+5, Y+4, C+3, F+2, H Pattern for the third letter:U+5, Z+6, F+7, M+8, U Hence, the missing group in OYZ |

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