Series Completion Questions Answers

22. 1, 2, 5, 12, 27, 58, 121, ?
 248
 244
 198
 190
Answer And Explanation
Answer: Option A
Explanation:
Pattern in the series is *2+1, *2+2, *2+3,.....
Term which replaces the question mark in the series is
121 * 2 + 6 = 248 
23. Complete the series, 3, 8, 13, 24, 41, ?
 70
 66
 64
 62
Answer And Explanation
Answer: Option A
Explanation:
Pattern of the above series is
first + second + 2, second + third + 3, third + fourth + 4......
So next term will be
24 + 41 + 5 = 70 
24. 11, 12, 17, 18, 23, 24, (....) . Which term will come next ?
 27
 29
 31
 33
Answer And Explanation
Answer: Option B
Explanation:
Please check, given sequence is combination of two seies
[Note: Usually when terms are more than 5, then chances are there that it may contain 2 series.]
Series 1 = 11, 17, 23
Series 2 = 12, 18, 24
So there is pattern +6 in each term
Next term will be 23+6 = 29 
25. 5, 6, 7, 8, 10, 11, 14, (...) ?
 19
 17
 16
 15
Answer And Explanation
Answer: Option D
Explanation:
Please check that given sequence consists of two series
Series 1: 5, 7, 10, 14
Series 2: 6, 8, 11, ...
In series 2 pattern is +2, +3, Next will be +4
So required number in the series will be 11+4 = 15

26. 1,1,3,9,6,36,10,100,(..),225
 12
 13
 14
 15
Answer And Explanation
Answer: Option D
Explanation:
Given sequence is combination of two series
Series 1 : 1,3,6,10,..
Series 2 : 1,9,36,100,225
In series 1 pattern is +2, +3, +4. So next term will be
10+5 = 15 
27. 13, 32, 24, 43, 35, (...), 46, 65, 57, 76
 52
 54
 56
 60
Answer And Explanation
Answer: Option B
Explanation:
There are two series in this sequence
Series 1: 13, 24, 35, 46, 57
Series 2: 32, 43, (..), 65, 76
The pattern it is following is +11
Missing number will be 43 + 11 = 54

28. 8, 9, 8, 7, 10, 9, 6, 11, 10, (...), 12
 7
 6
 5
 4
Answer And Explanation
Answer: Option C
Explanation:
Please note that above sequence is containing 3 series
Series 1 : 8, 7, 6, (..)
Series 2 : 9, 10, 11, 12
Series 3 : 8, 9, 10
In series 1 pattern is 1. So missing term will be 61 = 5