Series Completion:
Directions : In each of the following questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
1. 1, 9, 25, 49, ?, 121
a] 64 b] 81 c] 91 d] 100
a] 64 b] 81 c] 91 d] 100
2. 4, 7, 12, 19, 28, ?
a] 30 b] 36 c] 39 d] 49
a] 30 b] 36 c] 39 d] 49
3. 11, 13, 17, 19, 23, 25, ?
a] 26 b] 27 c] 29 d] 37
a] 26 b] 27 c] 29 d] 37
4. 6, 12, 21, ?, 48
a] 33 b] 38 c] 40 d] 45
a] 33 b] 38 c] 40 d] 45
5. 2, 5, 9, ?, 20, 27
a] 14 b] 16 c] 18 d] 24
a] 14 b] 16 c] 18 d] 24
6. 6, 11, 21, 36, 56, ?
a] 42 b] 51 c] 81 d] 91
a] 42 b] 51 c] 81 d] 91
7. 10, 18, 28, 40, 54, 70, ?
a] 85 b] 86 c] 87 d] 88
a] 85 b] 86 c] 87 d] 88
8. 120, 99, 80, 63, 48, ?
a] 35 b] 38 c] 39 d] 40
a] 35 b] 38 c] 39 d] 40
9. 22, 24, 28, ?, 52, 84
a] 36 b] 38 c] 42 d] 46
a] 36 b] 38 c] 42 d] 46
10. 4832, 5840, 6848, ?
a] 7815 b] 7846 c] 7856 d] 7887
a] 7815 b] 7846 c] 7856 d] 7887
11. 10, 100, 200, 310, ?
a] 400 b] 410 c] 420 d] 430
a] 400 b] 410 c] 420 d] 430
12. 0, 2, 8, 14, ?, 34
a] 20 b] 23 c] 24 d] 25
a] 20 b] 23 c] 24 d] 25
13. 28, 33, 31, 36, ?, 39
a] 32 b] 34 c] 38 d] 40
a] 32 b] 34 c] 38 d] 40
14. 125, 80, 45, 20, ?
a] 5 b] 8 c] 10 d] 12
a] 5 b] 8 c] 10 d] 12
15. 1, 5, 13, 25, 41, ?
a] 51 b] 57 c] 61 d] 63
a] 51 b] 57 c] 61 d] 63
16. 2, 15, 41, 80, ?
a] 111 b] 120 c] 121 d] 132
a] 111 b] 120 c] 121 d] 132
17. 6, 17, 39, 72, ?
a] 83 b] 94 c] 116 d] 127
a] 83 b] 94 c] 116 d] 127
18. 325, 259, 204, 160, 127, 105, ?
a] 94 b] 96 c] 98 d] 100
a] 94 b] 96 c] 98 d] 100
19. 1, 4, 10, 22, 46, ?
a] 64 b] 86 c] 94 d] 122
a] 64 b] 86 c] 94 d] 122
20. 0.5, 0.55, 0.65, 0.8, ?
a] 0.9 b] 0.82 c] 1 d] 0.95
a] 0.9 b] 0.82 c] 1 d] 0.95
21. 5, 6, 9, 15, ?, 40
a] 21 b] 25 c] 27 d] 33
a] 21 b] 25 c] 27 d] 33
22. 2, 3, 5, 7, 11, ?, 17
a] 12 b] 13 c] 14 d] 15
a] 12 b] 13 c] 14 d] 15
23. 4, 9, 25, ?, 121, 169, 289, 361
a] 49 b] 64 c] 81 d] 87
a] 49 b] 64 c] 81 d] 87
24. 1, 9, 25, 49, 81, ?
a] 100 b] 112 c] 121 d] 144
a] 100 b] 112 c] 121 d] 144
25. 1, 1, 4, 8, 9, 27, 16, ?
a] 32 b] 64 c] 81 d] 256
a] 32 b] 64 c] 81 d] 256
26. 4, 12, 36, 108, ?
a] 144 b] 216 c] 304 d] 324
a] 144 b] 216 c] 304 d] 324
27. 1, 1, 2, 6, 24, ?, 720
a] 100 b] 104 c] 108 d] 120
a] 100 b] 104 c] 108 d] 120
28. 240, ?, 120, 40, 10, 2
a] 180 b] 240 c] 420 d] 480
29. 4, 6, 9, 13 , ?
a] 17 b] 19 c] 20 d] 22
a] 180 b] 240 c] 420 d] 480
29. 4, 6, 9, 13 , ?
a] 17 b] 19 c] 20 d] 22
30. 5760, 960, ?, 48, 16, 8
a] 120 b] 160 c] 192 d] 240
a] 120 b] 160 c] 192 d] 240
31. 1, 2, 6, 7, 21, 22, 66, 67, ?
a] 70 b] 134 c] 201 d] 301
a] 70 b] 134 c] 201 d] 301
32. 48, 24, 96, 48, 192, ?
a] 76 b] 90 c] 96 d] 98
a] 76 b] 90 c] 96 d] 98
33. 1, 2, 3, 6, 9, 18, ?, 54
a] 18 b] 27 c] 36 d] 81
a] 18 b] 27 c] 36 d] 81
34. 165, 195, 255, 285, 345, ?
a] 375 b] 390 c] 420 d] 435
a] 375 b] 390 c] 420 d] 435
35. 9, 27, 31, 155, 161, 1127, ?
a] 316 b] 1135 c] 1288 d] 2254
a] 316 b] 1135 c] 1288 d] 2254
36. 2, 3, 3, 5, 10, 13, ?, 43, 172, 177
a] 23 b] 38 c] 39 d] 40
a] 23 b] 38 c] 39 d] 40
37. 3, 15, ?, 63, 99, 143
a] 27 b] 35 c] 45 d] 56
a] 27 b] 35 c] 45 d] 56
38. 7, 26, 63, 124, 215, 342, ?
a] 391 b] 421 c] 481 d] 511
a] 391 b] 421 c] 481 d] 511
39. 3, 7, 15, ?, 63, 127
a] 30 b] 31 c] 47 d] 52
a] 30 b] 31 c] 47 d] 52
40. 4, 10, ?, 82, 244, 730
a] 24 b] 28 c] 77 d] 218
a] 24 b] 28 c] 77 d] 218
Answers:
1. b 2. c 3. c 4. a 5. a 6. c 7. d 8. a 9. a 10. c 11. d 12. c 13. b 14. a 15. c 16. d 17. c 18. a 19. c 20. c 21. b 22. b 23. a 24. c 25. b 26. d 27. d 28. b 29. c 30. c 31. c 32. c 33. b 34. d 35. b 36. c 37. b 38. d 39. b 40. b