## Odd Man Out and Series

#### Odd Man Out and Series

1. 4 - 8, 16 - 32, 64 - (...) :
1. 128
2. -128
3. 192
4. -192

1. Each number is the preceding number multiplied by - 2. So, the required number is - 128.

##### Correct Option: B

Each number is the preceding number multiplied by - 2. So, the required number is - 128.

1. 125, 123, 120, 115, 108, 100, 84 ?
1. 125
2. 115
3. 100
4. 84

1. Prime numbers 2, 3, 5, 7, 11, 13 have successively been subtracted. So, 100 is wrong. It must be (108 - 11) i.e., 97.

##### Correct Option: C

Prime numbers 2, 3, 5, 7, 11, 13 have successively been subtracted. So, 100 is wrong. It must be (108 - 11) i.e., 97.

1. 125, 127, 130, 135, 142, 153, 165 ?
1. 130
2. 142
3. 153
4. 165

1. Prime number 2, 3, 5, 7, 11, 13 are to be added successively. So, 165 is wrong.

##### Correct Option: D

Prime number 2, 3, 5, 7, 11, 13 are to be added successively. So, 165 is wrong.

1. 52, 51, 48, 43, 34, 27, 16 ?
1. 27
2. 34
3. 43
4. 48

1. Subtract 1, 3, 5, 7, 9, 11 from successive numbers. So, 34 is wrong.

##### Correct Option: B

Subtract 1, 3, 5, 7, 9, 11 from successive numbers. So, 34 is wrong.

1. Find the wrong number in the series 3, 8, 15, 24, 34, 48, 63 ?
1. 15
2. 24
3. 34
4. 48

1. The difference between consecutive terms are respectively. 5, 7, 9, 11 and 13. So, 34 is a wrong number.

##### Correct Option: C

The difference between consecutive terms are respectively. 5, 7, 9, 11 and 13. So, 34 is a wrong number.