Aptitude - Odd Man Out and Series - Discussion

Discussion Forum : Odd Man Out and Series - Odd Man Out (Q.No. 1)
Directions to Solve
Find the odd man out.

1.
3, 5, 11, 14, 17, 21
21
17
14
3
Answer: Option
Explanation:

Each of the numbers except 14 is an odd number.

The number '14' is the only EVEN number.

Discussion:
45 comments Page 3 of 5.

Venkatreddy said:   9 years ago
14 is the correct answer.

I too got the same answer.

Vishal said:   9 years ago
Yes, I agree @Topcoder.

A is the correct answer.
Because:
3,
3 * 2 - 1 = 5.
3 * 4 - 1 = 11.
3 * 5 - 1 = 14.
3 * 6 - 1 = 17.
But
3 * 7 - 1 =20 So option A is correct.

Dhara said:   9 years ago
How? I cannot able to understand this question. Please help how this type of question are solved.

Anupam said:   1 decade ago
It can also be like this.

3+2 = 5, 5+6 = 11, 11+3 = 14, 14+7 = 21.

So according to this, 17 is "Find the odd number".

The first number is increased by 2 followed by an increase by 6. The next number is increased by 3 followed by an increase by 7 and so on.

Manjujain said:   2 decades ago
3*2-1=5
5*2+1=11 so on..........
but 14 is odd no.

Jatin said:   2 decades ago
Intelligent question & answer.

Rohit kr ray said:   1 decade ago
If 21 was not given, then another explanation should have been, others are prime numbers except 14.

Vishal kate said:   1 decade ago
It has two type solution

1. All are odd no and 14 is a even no
2. All are prime but 14 is even if 21 is exclude.

Sravan goud said:   1 decade ago
Each of the number is a multiple of 3 but 28 is not dividable by 3.

Pethkar shweta said:   1 decade ago
All no's are odd but 14 is even so ans is 14.


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