Quantitative Aptitude Questions for SBI PO Clerks

Directions (1-5): In each of these questions, a number series is given. In each series, only one number is wrong. Find out the wrong number.
1. 3601 3602 1803 604 154 36 12   (4)
(1) 3602 (2) 1803 (3) 604 (4) 154 (5) 36
2. 4 12 42 196 1005 6066 42511     (2)
(1) 12 (2) 42 (3) 1005 (4) 196 (5) 6066
3. 2 8 12 20 30 42 56      (1)
(1) 8 (2) 42 (3) 30 (4) 20 (5) 12
4. 32 16 24 65 210 945 5197.5     (5)
(1) 945 (2) 16 (3) 24 (4) 210 (5) 65
5. 7 13 25 49 97 194 385      (4)
(1) 13 (2) 49 (3) 97 (4) 194 (5) 25