This EduRev document offers 15 Multiple Choice Questions (MCQs) from the topic Series (Level - 1). These questions are of Level - 1 difficulty and will assist you in the preparation of CAT & other MBA exams. You can practice/attempt these CAT Multiple Choice Questions (MCQs) and check the explanations for a better understanding of the topic.
Question for Practice Questions Level 1: Series
Try yourself:Directions: Find the missing term in the following number series.
9, 12, 10, ?, 12, 21, 15, 27
Explanation
In this series, addition and subtraction take place alternately. Successive multiples of 3 are being added, and successive multiples of 2 are being subtracted.
9 + 3 = 12
12 - 2 = 10
10 + 6 = 16
16 - 4 = 12
12 + 9 = 21
21 - 6 = 15
15 + 12 = 27
Thus, the missing number is 16.
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Question for Practice Questions Level 1: Series
Try yourself:Directions: Find the missing term in the following number series.
4, 5, 9, 29, 111, 556, 3335
Explanation
The number series follows the rule as mentioned below:
Hence, 29 is the wrong number.
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Question for Practice Questions Level 1: Series
Try yourself:Directions: Find the missing term in the following number series.
450, 350, 230, ?, 10, -50
Explanation
The series follows the pattern:
450 - (2 × 50) = 350
350 - (3 × 40) = 230
230 - (4 × 30) = 110
110 - (5 × 20) = 10
10 - (6 × 10) = -50
Thus, the missing number is 110.
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Question for Practice Questions Level 1: Series
Try yourself:Directions: Find the missing term in the following number series.
7, 25, 45, 67, 91, ?
Explanation
Given series follows the pattern as mentioned below.
7 + 18 = 25
25 + 20 = 45
45 + 22 = 67
67 + 24 = 91
91 + 26 = 117
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Question for Practice Questions Level 1: Series
Try yourself:What should come in place of question mark (?) in the following number series?
325, 316, 298, 271, ?, 190
Explanation
Given numbers follow this pattern.
325 - 9 = 316
316 - 18 = 298
298 - 27 = 271
271 - 36 = 235
235 - 45 = 190
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Question for Practice Questions Level 1: Series
Try yourself:What will come in the place of question mark in the following number series?
4, 14, ?, 214, 854, 3414
Explanation
The pattern followed is that the numbers are initially being multiplied by 4 and then, the product is subtracted by 2 to get the following numbers by following the same pattern.
(4 × 4) - 2 = 14
(14 × 4) - 2 = 54
(54 × 4) - 2 = 214
(214 × 4) - 2 = 854
(854 × 4) - 2 = 3414
Thus, missing term is 54.
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Question for Practice Questions Level 1: Series
Try yourself:What will come in the place of question mark in the following number series?
85, 89, 86, 94, ?, 100, 91, 107, 95
Explanation
In the following series, the multiples of 4 are added at odd places and multiples of 3 are subtracted at even places.
85 + 4 = 89
89 - 3 = 86
86 + 8 = 94
94 - 6 = 88
88 + 12 = 100
100 - 9 = 91
91 + 16 = 107
107 - 12 = 95
Thus, missing term is 88.
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Question for Practice Questions Level 1: Series
Try yourself:What will come in the place of question mark in the following number series?
233, 232, 224, 197, 133, ?
Explanation
The pattern is as follows.
233 - 13 = 233 - 1 = 232,
232 - 23 = 232 - 8 = 224,
224 - 33 = 224 - 27 = 197,
197 - 43 = 197 - 64 = 133,
133 - 53 = 133 - 125 = 8
Therefore, missing term is 8.
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Question for Practice Questions Level 1: Series
Try yourself:Which of the following will take the place of '?' in the following series?
16, 24, ?, 37, 42, 46, 49
Explanation
The series follows the following pattern.
16 + 8 = 24
24 + 7 = 31
31 + 6 = 37
37 + 5 = 42
42 + 4 = 46
46 + 3 = 49
The missing number is 31.
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Question for Practice Questions Level 1: Series
Try yourself:Find the missing term and complete the sequence.
4, 7, ?, 19, 28, 39
Explanation
The pattern here is as follows.
(1)2 + 3 = 4
(2)2 + 3 = 7
(3)2 + 3 = 12 (Answer)
(4)2 + 3 = 19
(5)2 + 3 = 28
(6)2 + 3 = 39
So, missing number is 12.
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Question for Practice Questions Level 1: Series
Try yourself:Directions: In the following letter series, some of the letters are missing which are given in that order as one of the alternatives below it. Choose the correct alternative.
__ a __ b __ abaa __ bab __ abba
Explanation
The series is baa/bba/baa/bba/baa/bba. Thus, the pattern 'baa/bba' is repeated.
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Question for Practice Questions Level 1: Series
Try yourself:Find the missing terms and complete the sequence.
106, 106, 80, 80, 54, 54, ?, ?
Explanation
In this series, each number is repeated, then 26 is subtracted to arrive at the next number.
i.e. 106 - 26 = 80
80 - 26 = 54
Therefore,
? = 54 - 26 = 28
This is the correct answer.
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Question for Practice Questions Level 1: Series
Try yourself:What should come in place of the question mark (?) in the following number series?
42, 57, 87, 132, 192, ?
Explanation
42, 57, 87, 132, 192, ?
From the given sequence, we notice that
42 + 15 = 57
57 + 30 = 87
87 + 45 = 132
132 + 60 = 192
192 + 75 = 267
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Question for Practice Questions Level 1: Series
Try yourself:Directions: In the following letter series, some of the letters are missing which are given in that order as one of the alternatives below it. Choose the correct alternative.
__ bc __ ca __ aba __ c __ ca
Explanation
The series is abc/bca/cab/abc/bca. Thus, the letters change places in a cyclic order.
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Question for Practice Questions Level 1: Series
Try yourself:Directions: Find the wrong term.
2, 11.6, 39.8, 206.6, 1231, 8407.4
Explanation
The pattern is:
11.6 = 2 × 3 + 5.6
39.8 = 11.6 × 4 - 6.6
206.6 = 39.8 × 5 + 7.6
1231 = 206.6 × 6 - 8.6
8626.6 = 1231 × 7 + 9.6
So, 8407.4 is the incorrect term.
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