Reasoning - Questions on Series

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Find the missing number in the series.

1. 5760, 960,   ?  , 48, 16, 8  

1. 240
2. 192
3. 160
4. 120

2. 3, 9, 21, 39,   ?    

1. 72
2. 53
3. 63
4. 51

3. 1, 0, 3, 2, 5, 6,   ?    

1. 9
2. 8
3. 10
4. 7

4. 1, 1, 2, 3, 5, 8, 13,   ?    

1. 17
2. 21
3. 23
4. 19

5. 18, 24, 21, 27,   ?  , 30, 27   

1. 33
2. 30
3. 24
4. 21

6. 2, 5, 10, 17, 26,   ?    

1. 50
2. 37
3. 35
4. 45

7. 2, 4, 7, 11, 16, 22,   ?    

1. 41
2. 39
3. 25
4. 29

8. 4, 2, 5, 3, 6, 4, 7, 5, 8,   ?    

1. 4
2. 7
3. 6
4. 3

9. 2, 5, 10, 17, 26, 37,   ?    

1. 48
2. 50
3. 46
4. 67

10. 7, 14, 23, 34, 47, 62,   ?    

1. 79
2. 92
3. 82
4. 94

11. 2, 4, 12, 48, 240,   ?    

1. 480
2. 1200
3. 1440
4. 720

12. 1, 5, 4, 10, 9, 15, 16, 20,   ?    

1. 27
2. 25
3. 23
4. 30

13. 101, 120, 145, 168, 197,   ?    

1. 224
2. 226
3. 241
4. 227

14. 20, 17, 19, 16, 18, 15,   ?    

1. 15
2. 17
3. 21
4. 22

15. 2, 10, 30, 68, 130,   ?    

1. 231
2. 190
3. 214
4. 222