Series Completion Questions Answers

8. 1,9,17,33,49,73, ?
 93
 95
 97
 99
Answer And Explanation
Answer: Option C
Explanation:
Pattern for the given series is, +8, +8, +16, +16, +24
So next will be +24, 73+24 = 97 
9. 2,5,9,?,20,27, what will replace the question mark ?
 13
 14
 15
 16
Answer And Explanation
Answer: Option B
Explanation:
Pattern is +3,+4,..,..,+7, so +5 and +6 will be in the blanks
Question mark will be replaced by 9+5 = 14 
10. 21,25,33,49,81, ?
 140
 145
 147
 159
Answer And Explanation
Answer: Option B
Explanation:
Pattern is, +4, +8, +16, +32, so next will be +64
81+64 = 145 
11. 5,9,17,29,45, ?
 50
 60
 65
 70
Answer And Explanation
Answer: Option C
Explanation:
In this series the pattern is +4, +8, +12, +16, so next will be +20
Term which will replace the question mark in this series will be 45+20 = 65 
12. 1,6,15,(...),45,66,91
 26
 28
 29
 34
Answer And Explanation
Answer: Option B
Explanation:
Pattern in the series is, +5, +9, .., .., +21, +25
So 4 is getting increased at every term addition.
Missing term in the series will be 15+(9+4)
= 15+13 = 28 
13. Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next?
 25
 26
 27
 28
Answer And Explanation
Answer: Option A
Explanation:
Please look carefully at the series, its pattern is,
1, +2, 1, +2, 1, so next will be +2
23+2 = 25 
14. What number should come next in the series, 1, 2, 3, 5, 8, ?
 17
 12
 9
 13
Answer And Explanation
Answer: Option D
Explanation:
In this series, each term is the sum of preceding two terms as,
1+2 = 3
3+2 = 5
5+3 = 8
Next term in the series will be,
8+5 = 13