# Sequence and Series (Test 2)

## Problem Solving And Reasoning : Mathematics Or Quantitative Aptitude

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| Sequence and Series |
Q.1
Direction: What should come in place of question mark (?) in the following number series?
24, 536, 487, 703, 678, ?
A. 768
B. 748
C. 764
D. 742
E. None of these
Explaination / Solution: So, 742 will come at the place of question mark.

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Q.2
Direction: What will come in place of the question mark (?) in the following number series?
18, 27, 49, 84, 132, (?)
A. 190
B. 183
C. 193
D. 190
E. None of these
Explaination / Solution: So, ? = 193

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Q.3
Directions: What will come in place of the question mark (?) in each of the following number series?
33, 43, 65, 99, 145, (?)
A. 201
B. 203
C. 205
D. 211
E. None of these
Explaination / Solution: So, ? = 203

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Q.4
Direction: What will come in place of the question mark (?) in the following number series?
7, 11, 23, 51, 103, (?)
A. 186
B. 188
C. 185
D. 187
E. None of these
Explaination / Solution:

The series is
7 + (41) = 11
11 + (43) = 23
23 + (47) = 51
51 + (413) = 103
103 + (421) = 187
So, ? = 103 + (421) = 187

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Q.5
Directions: What will come in place of the question mark (?) in each of the following number series?
5, 3, 6, ?, 64.75
A. 15
B. 15.5
C. 17.5
D. 17.25
E. None of these
Explaination / Solution:

5*0.5 + 0.5 = 3
3*1.5 + 1.5 = 6
6*2.5 + 2.5 = 17.5
17.5*3.5 + 3.5 = 64.75
So, 17.5 will come at the place of question mark.

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Q.6
Directions: What should come in place of question mark (?) in the following number series ?

8, 9, 20, 63, 256, 1285, ?
A. 6430
B. 7450
C. 7716
D. 7746
E. None of these
Explaination / Solution: Workspace
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Q.7
Direction: What will come in place of the question mark (?) in the following number series?
1015, 508, 255, 129, 66.5, ?, 20.875
A. 34.50
B. 35
C. 35.30
D. 35.75
E. None of these
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Q.8
Direction: What will come in place of the question mark (?) in the following number series?
3, 6, 12, 24, 48, 96, ?
A. 192
B. 182
C. 186
D. 198
E. None of these
Explaination / Solution:

The pattern is:
3 × 2 = 6
6 × 2 = 12
12 × 2 = 24
24 × 2 = 48
48 × 2 = 96
96 × 2 = 192

Hence Option A is correct

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Q.9
Directions: What should come in place of the question mark (?) in the following number series?
2, 16, 112, 672, 3360, 13440 , ?
A. 3430
B. 3340
C. 40320
D. 43240
E. None of these
Explaination / Solution: Workspace
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Q.10
Directions: What should come in place of the question mark (?) in the following number series?
4, 9, 19, ? , 79, 159, 319
A. 59
B. 39
C. 49
D. 29
E. None of these 