Directions (1-15): What will come in the place of the question mark (?) in the following number series?
Q1. 22, ?, 166, 310, 502, 742
(a) 60
(b) 70
(c) 50
(d) 80
(e) 90
Q2. 28, 18, ?, 37, 78, 199
(a) 20
(b) 16
(c) 22
(d) 24
(e) 28
Q3. 25, 90, ?, 177, 203, 220
(a) 150
(b) 148
(c) 144
(d) 140
(e) 160
Q4. 103, ?, 190, 247, 313, 388
(a) 132
(b) 122
(c) 152
(d) 162
(e) 142
Q5. 21, ?, 199, 603, 1817, 5461
(a) 65
(b) 55
(c) 45
(d) 75
(e) 85
Q6. 2, 4, 10, 22, 42, ?
(a) 67
(b) 70
(c) 72
(d) 75
(e) 78
Q7. 8, 4, 6, 15, ? , 236.25
(a) 46.5
(b) 48.5
(c) 50.5
(d) 52.5
(e) 54.5
Q8. 15, 34, 72, 148, ? , 604
(a) 300
(b) 290
(c) 295
(d) 280
(e) 285
Q9. 25, 30, 20, 40, ? , 80
(a) 40
(b) 20
(c) 10
(d) 0
(e) 60
Q10. 15, 8, 9, 15, 32, ?
(a) 77.5
(b) 80
(c) 82.5
(d) 85
(e) 87.5
Q11. 18, 55, 167, 504, ?, 4553
(a) 1216
(b) 1516
(c) 1520
(d) 1816
(e) 1220
Q12. 279, 294, 324, 369, 429, ?
(a) 504
(b) 520
(c) 564
(d) 604
(e) 524
Q13. 10, 26, 50, 110, 320, ?
(a) 825
(b) 1245
(c) 1065
(d) 1265
(e) 1625
Q14. 286, 142, ?, 34, 16, 7
(a) 54
(b) 70
(c) 60
(d) 64
(e) 50
Q15. 200, 320, 464, 613, 786, 964 , ?
(a) 1284
(b) 1066
(c) 1166
(d) 1612
(e) 1264
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