Aptitude - Odd Man Out and Series
Exercise : Odd Man Out and Series - Missing 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
Insert the missing number.
1.
16, 33, 65, 131, 261, (....)
Answer: Option
Explanation:
Each number is twice the preceding one with 1 added or subtracted alternatively.
So, the next number is (2 x 261 + 1) = 523.
2.
10, 5, 13, 10, 16, 20, 19, (....)
Answer: Option
Explanation:
There are two series (10, 13, 16, 19) and (5, 10, 20, 40), one increasing by 3 and the other multiplied by 2.
3.
1, 4, 9, 16, 25, 36, 49, (....)
Answer: Option
Explanation:
Numbers are 12, 22, 32, 42, 52, 62, 72.
So, the next number is 82 = 64.
4.
2, 4, 12, 48, 240, (....)
Answer: Option
Explanation:
Go on multiplying the given numbers by 2, 3, 4, 5, 6.
So, the correct next number is 1440.
5.
8, 7, 11, 12, 14, 17, 17, 22, (....)
Answer: Option
Explanation:
There are two series (8, 11, 14, 17, 20) and (7, 12, 17, 22) increasing by 3 and 5 respectively.
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