# Aptitude - Odd Man Out and Series - Discussion

Discussion Forum : Odd Man Out and Series - Pick Wrong No. (Q.No. 1)

*Directions to Solve*

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

1.

582, 605, 588, 611, 634, 617, 600

Answer: Option

Explanation:

Alternatively 23 is added and 17 is subtracted from the terms. So, 634 is wrong.

Discussion:

38 comments Page 1 of 4.
Bharath said:
9 years ago

@Sammi. Cool reason. Apparently the world sees these things differently. You can come up with many approaches for the same problem but its safe to stick with the ones that are quite obvious.

FYI, approaching a sequence in reverse might not be so obvious. Instead, look for the trend in numbers and try and picture them on a graph.

FYI, approaching a sequence in reverse might not be so obvious. Instead, look for the trend in numbers and try and picture them on a graph.

Rabi kumar said:
6 years ago

There is two series of alternate numbers, we can separate it like:

582, 605, 588, 611, 634, 617, 600

1). 582, 588, 634, 600

2). 605, 611, 617

In each number, we add 6 we get next number, ex- 582+6= 588, 588+6= 594, 594+6=600, So here in series it is given 634 instead of 594. So odd number is (634) answer.

582, 605, 588, 611, 634, 617, 600

1). 582, 588, 634, 600

2). 605, 611, 617

In each number, we add 6 we get next number, ex- 582+6= 588, 588+6= 594, 594+6=600, So here in series it is given 634 instead of 594. So odd number is (634) answer.

Ansar said:
1 decade ago

Alternatively 23 is added and 17 is subtracted from the terms

582+23=605

605-17=588

588+23=611

611-17=594......

634+23=617

617-17=600

In these series Actually the answer is 594 but instead of tat we have 634 so we can consider 634 as the wrong no.

582+23=605

605-17=588

588+23=611

611-17=594......

634+23=617

617-17=600

In these series Actually the answer is 594 but instead of tat we have 634 so we can consider 634 as the wrong no.

Shashank said:
1 decade ago

We can assume two sequence in the problem.

One starting from 582 and other starting with 605 and adding 6 to each term of the sequence.

582+6 = 588

588+6 = 594 instead of this there is 634

and again 594+6=600

Similarly,

605+6=611

611+6=617.

One starting from 582 and other starting with 605 and adding 6 to each term of the sequence.

582+6 = 588

588+6 = 594 instead of this there is 634

and again 594+6=600

Similarly,

605+6=611

611+6=617.

(2)

Mukesh said:
1 decade ago

Hi Rekha,

582, 605, 588, 611, 634, 617, 600

If you look into the question you can break the series in two parts...

1. 582,588,634,600

2. 605,611,617

By adding 6 in each of the first number of series you will get the odd one as 634.

582, 605, 588, 611, 634, 617, 600

If you look into the question you can break the series in two parts...

1. 582,588,634,600

2. 605,611,617

By adding 6 in each of the first number of series you will get the odd one as 634.

Ajinkya said:
5 years ago

If we consider the series;

582+23=605 ----> 1st term

605-17=588 ----> 2nd term

588+23=611 ----> 3rd term

611-17=594 ----> (which is not 4th term) so instead of 634, it should be 594.

582+23=605 ----> 1st term

605-17=588 ----> 2nd term

588+23=611 ----> 3rd term

611-17=594 ----> (which is not 4th term) so instead of 634, it should be 594.

(14)

Chinmay said:
8 years ago

One of the obvious reasons I think is that 617 is prime and all others are composite. Why didn't anybody see this? It is I suppose a stronger reason than simple adding and subtracting.

Niranjan Reddy.V said:
2 years ago

@Shashank

I have one doubt.

588+6 = 594

594+ 6 = 600 then

600+ 6 = .....?

In your point of view, we have options is there..

1) 605

2) 634

Please clarify it clearly.

I have one doubt.

588+6 = 594

594+ 6 = 600 then

600+ 6 = .....?

In your point of view, we have options is there..

1) 605

2) 634

Please clarify it clearly.

Vivek Mishra said:
6 years ago

If we add 6 to every alternate number the alternate number comes same except 600.

Eg- 582 (1st number) +6 = 588 (3rd number).

605 (2nd number) +6=611 (4th number).

Eg- 582 (1st number) +6 = 588 (3rd number).

605 (2nd number) +6=611 (4th number).

(4)

Saptarshi Nag said:
9 years ago

If the given explanation is assumed right then the sequence comes like 23, -17, 23, 23, -17, -17. In this case I think that also 600 is odd one.

Post your comments here:

Your comments will be displayed after verification.

Quick links

Quantitative Aptitude

Verbal (English)

Reasoning

Programming

Interview

Placement Papers

© IndiaBIX™ Technologies