1. 5, 10, 15 ,25, 40, .............

Answer: 3) 65

2. 1, 2, 8, 9, 15, 16 ............

Answer : 4) 22

3. 4, 10, 22, 46, ...........

Answer : 1) 94

4. 4, 5, 7, ........., 19

Answer : 3) 11

5. 2, 6, 18, 54, .........,

Answer : 4) 162

6. 128, 64, ........., 16, 8

Answer : 4) 32

7. 125, 115, 105, 95, ................

Answer : 1) 85

8. 678, 567, 456, 345, ................

Answer : 2) 234

9. 3, 6, 18, 72, ................

Answer : 1) 360

10. 12, 32, 72, 152, ................, 632

Answer : 3) 312

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