Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
26.
45, 54, 47, ?, 49, 56, 51, 57, 53
A. 48
B. 50
C. 55
D. None of these
Answer & Explanation
Answer: Option C
Explanation:
The given sequence is a combination of two series:
I. 45, 47, 49, 51, 53 and II. 54, ?, 56, 57
Clearly, II consists of consecutive natural numbers, starting from 54.
So, missing term = 55.
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27.
3, 8, 13, 24, 41, ?
A. 70 B. 75
C. 80 D. 85
Answer & Explanation
Answer: Option A
Explanation:
The pattern followed is : nth term + (n + l)th term + (n + 1) = (n + 2)th term.
Thus, 1st term + 2nd term + 2 = 3rd term; 2nd term + 3rd term + 3 = 4th term and so on.
So, missing term = 6th term = 4th term + 5th term + 5 = 24 + 41 + 5 = 70.
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28.
10, 14, 26, 42, 70, ?
A. 100 B. 102
C. 106 D. 114
Answer & Explanation
Answer: Option D
Explanation:
Each term in the series, except the first two terms, is 2 more than the sum of the preceding two terms.
So, missing term = (42 + 70) + 2 = 114.
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29.
10, 18, 28, 40, 54, 70, ?
A. 85 B. 86
C. 87 D. 88
Answer & Explanation
Answer: Option D
Explanation:
The pattern is + 8, + 10, + 12, + 14, …..
So, missing term = 70 + 18 = 88.
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30.
8, 28, 116, 584, ?
A. 1752 B. 3502
C. 3504 D. 3508
Answer & Explanation
Answer: Option D
Explanation:
The pattern is x 3 + 4, x 4 + 4, x 5 + 4,…..
So, missing term = 584 x 6 + 4 = 3508.