1. 2, 5, 10, 17, 26, ? a) 35 b) 37 c) 38 d) 40

2. 1, 4, 9, 16, 25, ? a) 30 b) 34 c) 36 d) 40

3. 3, 6, 12, 24, 48, ? a) 72 b) 96 c) 98 d) 108

4. 1, 1, 2, 3, 5, 8, ? a) 10 b) 11 c) 13 d) 15

5. 2, 6, 12, 20, 30, ? a) 40 b) 42 c) 44 d) 46

6. 64, 32, 16, 8, 4, ? a) 1 b) 2 c) 0.5 d) 3

7. 1, 8, 27, 64, 125, ? a) 156 b) 216 c) 343 d) 512

8. 5, 11, 17, 23, 29, ? a) 33 b) 34 c) 35 d) 36

9. 2, 3, 6, 18, 108, ? a) 216 b) 864 c) 1944 d) 324

10. 12, 14, 18, 26, 42, ? a) 68 b) 74 c) 80 d) 84