# Aptitude - Odd Man Out and Series - Discussion

Discussion Forum : Odd Man Out and Series - Odd Man Out (Q.No. 9)
Directions to Solve
Find the odd man out.

9.
10, 14, 16, 18, 21, 24, 26
26
24
21
18
Explanation:
Each of the numbers except 21 is an even number.
Discussion:
27 comments Page 1 of 3.

DS Francis said:   1 year ago
It also be 26 answer, because all other number should be divided by 3.
(2)

ENGOLE said:   3 years ago
There are 2 possibilities.

All the numbers are multiples of 3 except 26. So 26 is the odd man out.

All the numbers can be divided by 2 except 21. So, it is odd one.

Akash said:   3 years ago
All except 21 is the multiple of 2.

Harika said:   5 years ago
Because 21 is not a multiple of 2.

Ankit singh said:   7 years ago
(a) 26 is also right because except this all of them are multiple of 3.

Nidheesh said:   7 years ago
16 is only one perfect square. Others are not a perfect square. So two answer for this question.

ABHISHEK KUMAR YADAV said:   7 years ago
10, 14, 16, 18, 21, 24, 26

another method in my view is :-
10 = 2 * 5
14 = 2 * 7
16 = 2 * 8
18 = 2 * 9
21 = (21 is not multiply by 2 with any number).
24 = 2 * 12
26 = 2 * 13.
(1)

Sanket said:   7 years ago
21 is not an even number. So the odd man out is 21.

Abhinav said:   7 years ago
All are multiples of 2 except 21 so it is an odd number.

Santosh said:   8 years ago
I agree with @Bala krishnan even I thought the same. In table of 3 the numbers follows. 3x6=18, 3x7=21, 3x8=24. So A26 is oddman out.