Number Series Practice Test Sample Paper - 2 with Answer Key and Solution [Quantitative Aptitude]

Here is solved questions of Number Series for SBI PO and IBPS exams. Questions regarding solving a number series are asked in almost all entrance examinations and candidates need to practice this section very hard to score good marks and hence good position in merit list.

 

Number Series [Quantitative Aptitude] Model Test Paper - 2

 

Maximum Marks: 10     /      Duration: 10 Mins

Directions for Q.1 - Q.5
Find out the wrong number in the given number series.

Q.1. 13, 25, 40, 57, 79, 103, 130

A) 25
B) 40
C) 57
D) 79
E) None of these

Explanation (Show/Hide)

The pattern is:
13 + 12 = 25
25 + 15 = 40
40 + 18 = 58
58 + 21 = 79
79 + 24 = 103......

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Q.2. 850, 600, 550, 500, 475, 462.5, 456.25

A) 600
B) 550
C) 500
D) 462.5
E) None of these

Explanation (Show/Hide)

The pattern is:
850 - 200 = 650
650 - 100 = 550
550 - 50 = 500
500 - 25 = 475....

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Q.3. 2, 10, 18, 54, 162, 486, 1458

A) 18
B) 54
C) 162
D) 10
E) None of these

Explanation (Show/Hide)

The pattern is:
2 * 3 = 6
6 * 3 = 18
18 * 3 = 54
54 * 3 = 162....

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Q.4. 8, 12, 24, 46, 72, 108, 152

A) 12
B) 24
C) 46
D) 72
E) None of these

Explanation (Show/Hide)

The pattern is:
8 + 4*1 = 12
12 + 4*3 = 24
24 + 4*5 = 44
44 + 4*7 = 72....

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Q.5. 142, 119, 100, 83, 65, 59, 52

A) 65
B) 100
C) 59
D) 119
E) None of these

Explanation (Show/Hide)

The pattern is:
142 - 23 = 119
119 - 19 = 100
100 - 17 = 83
83 - 13 = 70
70 - 11 = 59......

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Directions for Q.6 - Q.10
What should come in the place of '?' in the following number series

Q.6. 5, 54, 90, 115, 131, 140, ?

A) 149
B) 146
C) 142
D) 152
E) None of these

Explanation (Show/Hide)

The pattern is :
5 + 7² = 54
54 + 6² = 90
90 + 5² = 115
115 + 4² = 131
131 + 3² = 140
140 + 2² = 144

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Q.7. 7, 4, 5, 9, ?, 52.5, 160.5

A) 32
B) 16
C) 14
D) 20
E) None of these

Explanation (Show/Hide)

The pattern is:
7 * 05. + 0.5 = 4
4 * 1 + 1 = 5
5 * 1.5 + 1.5 = 9
9 * 2 + 2 = 20
20 * 2.5 + 2.5 = 52.5....

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Q.8. 6, 42, ?, 1260, 5040, 15120, 30240

A) 546
B) 424
C) 252
D) 325
E) None of these

Explanation (Show/Hide)

The pattern is:
6 * 7 = 42
42 * 6 = 252
252 * 5 = 1260...

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Q.9. 4, 10, 40, 190, 940, ?, 23440

A) 4690
B) 2930
C) 5140
D) 3680
E) None of these

Explanation (Show/Hide)

The pattern is:
4 * 5 - 10 = 10
10 * 5 - 10 = 40
40 * 5 - 10 = 190
190 * 5 - 10 = 940
940 * 5 - 10 = 4690.....

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Q.10. 2, 9, 30, ?, 436, 2195, 13182

A) 216
B) 105
C) 178
D) 324
E) None of these

Explanation (Show/Hide)

The pattern is:
2*1 + 1*7 = 9
9*2 + 2*6 = 30
30*3 + 3*5 = 105
105*4 + 4*4 = 436.....

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