## Odd Man Out and Series

#### Odd Man Out and Series

1. 125, 123, 120, 115, 108, 100, 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. Find the wrong number in the series 3, 8, 15, 24, 34, 48, 63 ?

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.

1. 52, 51, 48, 43, 34, 27, 16 ?

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. 125, 127, 130, 135, 142, 153, 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. 2, 4, 12, 48, 240, (...) ?

1. Go on multiplying the given numbers by 2, 3, 4, 5, 6. So, the correct next number is 1440.

##### Correct Option: B

Go on multiplying the given numbers by 2, 3, 4, 5, 6. So, the correct next number is 1440.