# Aptitude - Odd Man Out and Series

Exercise : Odd Man Out and Series - Pick Wrong No.

- Odd Man Out and Series - Odd Man Out
- Odd Man Out and Series - Pick Wrong No.
- Odd Man Out and Series - Missing No.
- Odd Man Out and Series - Find Wrong No.

*Directions to Solve*

Find out the wrong number in the given sequence of numbers.

11.

46080, 3840, 384, 48, 24, 2, 1

Answer: Option

Explanation:

The terms are successively divided by 12, 10, 8, 6, ...etc.

So, 24 is wrong, it should be 8 (48/6 = 8).

12.

6, 13, 18, 25, 30, 37, 40

Answer: Option

Explanation:

The differences between two successive terms from the beginning are 7, 5, 7, 5, 7, 5.

So, 40 is wrong.

13.

36, 54, 18, 27, 9, 18.5, 4.5

Answer: Option

Explanation:

The terms are alternatively multiplied by 1.5 and divided by 3. However, 18.5 does not satisfy it.

14.

56, 72, 90, 110, 132, 150

Answer: Option

Explanation:

The numbers are 7 x 8, 8 x 9, 9 x 10, 10 x 11, 11 x 12, 12 x 13.

So, 150 is wrong.

15.

25, 36, 49, 81, 121, 169, 225

Answer: Option

Explanation:

The numbers are squares of odd natural numbers, starting from 5 up to 15.

So, 36 is wrong.

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