Directions (1-5): In the following number series only one number is wrong. Find out the wrong number.
1. 9050, 5675, 3478, 2147, 1418, 1077, 950 (5)
- (1) 3478
- (2) 1418
- (3) 5675
- (4) 2147
- (5) 1077
2. 71, 90, 128, 185, 261, 365 (1)
- (1) 365
- (2) 128
- (3) 185
- (4) 90
- (5) 261
3. 484 240 120 57 26.5 11.25 3.625 (2)
- (1) 240
- (2) 120
- (3) 57
- (4) 26.5
- (5) 11.25
4. 3 5 13 43 176 891 5353 (4)
- (1) 5
- (2) 13
- (3) 43
- (4) 176
- (5) 891
5. 12 25 52 55 57 115 117 (4)
- (1) 55
- (2) 117
- (3) 25
- (4) 52
- (5) None of these