# Missing Number Series Questions | Logical Reasoning

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## Number Series Questions and Answers

Directions: In each of the following questions, a number series is given with one term with (?) marks. Find out the missing term and replace it with correct answers given below the series.

1. 1, 6, 15, ?, 45, 66
(a) 26
(b) 24
(c) 28
(d) 23

2. 3, 12, 27, 48, 75, 108, ?
(a) 147
(b) 157
(c) 167
(d) 177

3. 5, 11, 24, 51, 106, ?
(a) 122
(b) 217
(c) 120
(d) 153

4. 3, 9, 27, 81, ?
(a) 243
(b) 343
(c) 443
(d) 543

5. 24, 35, 20, 31, 16, 27, ?, ?
(a) 12, 23
(b) 5, 30
(c) 8, 25
(d) 9, 9

6. 1, 9, 17, 33, 49, 73, ?
(a) 95
(b) 97
(c) 102
(d) 363

7. 1, 2, 5, 26, ?
(a) 677
(b) 252
(c) 526
(d) 125

8. 78, 155, 309, ?, 1233
(a) 1230
(b) 1000
(c) 617
(d) 625

9. 0, 6, 24, 60, 120, 210, ?
(a) 240
(b) 336
(c) 504
(d) 290

10. 2, 5, 9, ?, 20, 27
(a) 4
(b) 14
(c) 24
(d) 34

11. 3, 5, 9, 17, ?
(a) 42
(b) 26
(c) 65
(d) 33

12. 5, 9, 17, 29, 45, ?
(a) 65
(b) 70
(c) 85
(d) 96

13. 4, 6, 10, 16, 24, ?
(a) 40
(b) 28
(c) 30
(d) 34

14. 6, 10, 18, 34, ?, 130
(a) 78
(b) 52
(c) 66
(d) 94

15. 0, 7, 26, 63, ?
(a) 123
(b) 87
(c) 96
(d) 124

16. 1, 6, 15, ?, 45, 66, 91
(a) 20
(b) 28
(c) 36
(d) 98

17. 12?41?34123??234
(a) 3241
(b) 2134
(c) 1432
(d) 3212

18. 1, 2, 3, 5, 8, ?
(a) 10
(b) 11
(c) 12
(d) 13

19. 2, 15, 10, 17, 26, ?2?
(a) 49
(b) 47
(c) 37
(d) 36

20. 0.5, 1.5, 4.5, 13.5, ?
(a) 20.5
(b) 25.5
(c) 30.5
(d) 40.5