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Verbal Reasoning :: Series Completion

Home > Verbal Reasoning > Series Completion > General Questions

61. Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
4 2 2 3 6 15 ?

Answer: Option A

Explanation:

Here is no explanation for this answer

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62. Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
123,444,888,1776,8547,?

Answer: Option B

Explanation:

123+321=444, 444+444=888, 888+888=1776, 1776+6771=8547.
So,8547 + 7458 = 16005.

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63. Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.

18,10,80,88,10,2,16,24,8,0,0, ?

Answer: Option B

Explanation:

The numbers in the series are as shown below:
18-8=10, 10*8=80, 80+8=88, 10-8=2, 2*8=16, 16+8=24.
8-8=0,0*8=0,So the next term is 0+8=8.

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64. Find the missing
2862, 3192, 3540, 3906, 4290, ? , 5112

Answer: Option D

Explanation:

2+8+6+2 = 18 => 1+8 = 9
3+1+9+2 = 15 => 1+5 = 6

similarly combination is 9, 6, 3, 9,6,?,9
4+6+9+2 = 21 => 2+1 = 3

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65. Find the missing
4, 36, 144, ? , 900, 1764, 3136, 5184

Answer: Option C

Explanation:

2^2, 6^2, 12^2, 20^2, 30^2, 42^2
+4, +6, +8, +10, +12

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66. Find the missing
2, 5, 9, ?, 20, 27

Answer: Option A

Explanation:

The pattern is + 3, + 4, + 5, + 6,.....

So, missing term = 9 + 5 = 14.

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Tags:  CGI

67. 

What is the next number?



11, 23, 47, 83, 131, ....


Answer: Option D

Explanation:

23–11 = 12

47–23 = 24

83–47 = 36

131–83 = 48

Therefore, 131+60=191

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68. 

What is the next number in the given series?



70, 54, 45, 41,.....


Answer: Option D

Explanation:

Consecutive squares are subtracted from the numbers.



70 - 54 = 16



54 - 45 = 9



45 - 41 = 4



So next we have to subtract 1.



So answer = 41 - 1 = 40

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Tags:  TCS

69. What is the next number of the following sequence
125102550(?)

Answer: Option A

Explanation:

Consider the series as 1 2 5 10 25 50 ____
1*2 = 2
2*2.5 = 5
5*2 = 10
10*2.5 = 25
25*2 = 50
50*2.5 = 125

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70. What is the next number of the following sequence
1.5, 3, 9, 18, 54, 108,...?

Answer: Option B

Explanation:

5*2=3
3*3=9
9*2=18
18*3=54
54*2=108
108*3=324

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Tags:  Syntel Inc.