Directions (1-5): In each of these number series one number is wrong. Find out the wrong number.
1. 5, 6, 7.5, 9.75, 13.25, 18.4275 (1)
1. 5, 6, 7.5, 9.75, 13.25, 18.4275 (1)
- (1) 13.25
- (2) 9.75
- (3) 18.4275
- (4) 7.5
- (5) None of these
2. 13, 25, 41, 62, 85, 113 (1)
- (1) 62
- (2) 25
- (3) 113
- (4) 85
- (5) None of these
3. 250, 55, 16, 8.2, 6.1, 6.328 (4)
- (1) 6.328
- (2) 55
- (3) 8.2
- (4) 6.1
- (5) 16
4. 18, 54, 162, 491, 1466 (4)
- (1) 18
- (2) 491
- (3) 1466
- (4) 54
- (5) 162
5. 7, 8, 24, 106, 361, 986 (5)
- (1) 81
- (2) 106
- (3) 304
- (4) 24
- (5) None of these