Quantitative Aptitude

Directions (1-5): Find the wrong number which does not follow the specific pattern in each of the given number series ?

1. 5531, 5506, 5425, 5304, 5135, 4910, 4621…    (1)

1. 1. 5531
2. 2. 5425
3. 3. 4621
4. 4. 5135
5. 5. 5506

2. 6, 7, 9, 13, 26, 37, 69…                                         (2)

1. 1. 7
2. 2. 26
3. 3. 69
4. 4. 37
5. 5. 9

3. 1, 3, 10, 36, 152, 760, 4632…                          (4)

1. 1. 3
2. 2. 36
3. 3. 4632
4. 4. 760
5. 5. 152

4. 157.5, 45, 15, 6, 3, 2, 1…                                     (1)

1. 1. 1
2. 2. 2
3. 3. 6
4. 4. 157.5
5. 5. 45

5. 216, 243, 512, 729, 1000, 1331…                      (4)

1. 1. 216
2. 2. 512
3. 3. 729
4. 4. 243
5. 5. 1331