Aptitude - Odd Man Out and Series

Exercise : Odd Man Out and Series - Odd Man Out
Directions to Solve
Find the odd man out.

6.
1, 4, 9, 16, 23, 25, 36
9
23
25
36
Answer: Option
Explanation:
Each of the numbers except 23, is perfect square.

7.
1, 4, 9, 16, 20, 36, 49
1
9
20
49
Answer: Option
Explanation:
The pattern is 12, 22, 32, 42, 52, 62, 72. But, instead of 52, it is 20 which to be turned out.

8.
2, 5, 10, 17, 26, 37, 50, 64
50
26
37
64
Answer: Option
Explanation:

(1*1)+1 , (2*2)+1 , (3*3)+1 , (4*4)+1 , (5*5)+1 , (6*6)+1 , (7*7)+1 , (8*8)+1

But, 64 is out of pattern.


9.
10, 14, 16, 18, 21, 24, 26
26
24
21
18
Answer: Option
Explanation:
Each of the numbers except 21 is an even number.

10.
16, 25, 36, 72, 144, 196, 225
36
72
196
225
Answer: Option
Explanation:
Each of the numbers except 72 is a perfect square.