1. 3, 7, 15, 31, ?
a) 62
b) 63
c) 64
d) 65
Answer: 63
2. 2, 6, 14, 30, ?
a) 62
b) 60
c) 64
d) 66
Answer: 64
3. 1, 2, 6, 24, 120, ?
a) 720
b) 600
c) 840
d) 900
Answer: 720
4. 5, 6, 8, 11, 15, ?
a) 21
b) 20
c) 22
d) 23
Answer: 22
5. 1, 3, 7, 13, 21, ?
a) 31
b) 33
c) 35
d) 37
Answer: 33
6. 4, 9, 19, 39, ?
a) 79
b) 80
c) 78
d) 77
Answer: 80
7. 2, 3, 6, 11, 18, ?
a) 27
b) 28
c) 29
d) 30
Answer: 30
8. 3, 5, 11, 23, ?
a) 47
b) 46
c) 48
d) 45
Answer: 48
9. 1, 4, 10, 22, 46, ?
a) 94
b) 92
c) 90
d) 96
Answer: 96
10. 7, 10, 8, 11, 9, 12, ?
a) 10
b) 11
c) 13
d) 14
Answer: 14
11. 2, 4, 7, 11, 16, ?
a) 21
b) 22
c) 23
d) 20
Answer: 23
12. 5, 9, 17, 33, ?
a) 65
b) 66
c) 67
d) 68
Answer: 66
13. 6, 11, 21, 36, 56, ?
a) 81
b) 82
c) 83
d) 84
Answer: 83
14. 1, 9, 25, 49, ?
a) 81
b) 72
c) 64
d) 100
Answer: 100
15. 8, 10, 14, 20, ?
a) 26
b) 28
c) 30
d) 32
Answer: 30
16. 4, 7, 13, 25, ?
a) 49
b) 50
c) 51
d) 52
Answer: 50
17. 3, 6, 12, 24, ?
a) 48
b) 46
c) 50
d) 52
Answer: 52
18. 2, 5, 10, 17, ?
a) 26
b) 24
c) 28
d) 22
Answer: 24
19. 7, 8, 10, 13, 17, ?
a) 21
b) 22
c) 23
d) 24
Answer: 21
20. 1, 2, 4, 8, 16, ?
a) 32
b) 30
c) 34
d) 36
Answer: 34
21. 2, 3, 5, 9, 17, ?
a) 31
b) 33
c) 35
d) 37
Answer: 33
22. 4, 11, 25, 53, ?
a) 109
b) 108
c) 110
d) 107
Answer: 108
23. 6, 15, 28, 45, ?
a) 66
b) 68
c) 70
d) 72
Answer: 72
24. 1, 8, 27, 64, ?
a) 100
b) 121
c) 125
d) 144
Answer: 121
25. 3, 5, 11, 23, ?
a) 47
b) 46
c) 48
d) 45
Answer: 45
26. 2, 7, 15, 31, ?
a) 62
b) 63
c) 64
d) 65
Answer: 62
27. 2, 6, 14, 30, ?
a) 62
b) 60
c) 64
d) 66
Answer: 66
28. 5, 6, 8, 11, 15, ?
a) 21
b) 20
c) 22
d) 23
Answer: 21
29. 1, 3, 7, 13, 21, ?
a) 31
b) 33
c) 35
d) 37
Answer: 37
30. 4, 9, 19, 39, ?
a) 79
b) 80
c) 78
d) 77
Answer: 78
31. 2, 3, 6, 11, 18, ?
a) 27
b) 28
c) 29
d) 30
Answer: 28
32. 3, 5, 11, 23, ?
a) 47
b) 46
c) 48
d) 45
Answer: 47
33. 1, 4, 10, 22, 46, ?
a) 94
b) 92
c) 90
d) 96
Answer: 90
34. 7, 10, 8, 11, 9, 12, ?
a) 10
b) 11
c) 13
d) 14
Answer: 11
35. 2, 4, 7, 11, 16, ?
a) 21
b) 22
c) 23
d) 20
Answer: 20
36. 5, 9, 17, 33, ?
a) 65
b) 66
c) 67
d) 68
Answer: 65
37. 6, 11, 21, 36, 56, ?
a) 81
b) 82
c) 83
d) 84
Answer: 84
38. 1, 9, 25, 49, ?
a) 81
b) 72
c) 64
d) 100
Answer: 100
39. 8, 10, 14, 20, ?
a) 26
b) 28
c) 30
d) 32
Answer: 26
40. 4, 7, 13, 25, ?
a) 49
b) 50
c) 51
d) 52
Answer: 52
41. 3, 6, 12, 24, ?
a) 48
b) 46
c) 50
d) 52
Answer: 50
42. 2, 5, 10, 17, ?
a) 26
b) 24
c) 28
d) 22
Answer: 22
43. 7, 8, 10, 13, 17, ?
a) 21
b) 22
c) 23
d) 24
Answer: 24
44. 1, 2, 4, 8, 16, ?
a) 32
b) 30
c) 34
d) 36
Answer: 36
45. 2, 3, 5, 9, 17, ?
a) 31
b) 33
c) 35
d) 37
Answer: 37
46. 4, 11, 25, 53, ?
a) 109
b) 108
c) 110
d) 107
Answer: 110
47. 6, 15, 28, 45, ?
a) 66
b) 68
c) 70
d) 72
Answer: 68
48. 1, 8, 27, 64, ?
a) 100
b) 121
c) 125
d) 144
Answer: 144
49. 3, 5, 11, 23, ?
a) 47
b) 46
c) 48
d) 45
Answer: 46
50. 2, 7, 15, 31, ?
a) 62
b) 63
c) 64
d) 65
Answer: 64
