Logical Reasoning - Number Series - Discussion

In each series, look for the degree and direction of change between the numbers. In other words, do the numbers increase or decrease, and by how much

15. 

Look at this series: 544, 509, 474, 439, ... What number should come next?

[A]. 404
[B]. 414
[C]. 420
[D]. 445

Answer: Option A

Explanation:

This is a simple subtraction series. Each number is 35 less than the previous number.

Prathyusha said: (Feb 22, 2011)  
544-509=35
474-439=35
439-404=35
404 is answer

Swati said: (May 25, 2011)  
Its good. You are a genius. You know?

Maulik Barot said: (Jun 23, 2011)  
:P well ! embarrassing !

Varun said: (Sep 7, 2012)  
544-474=70
474-70=404. Its continue the alternative chain.

Ramkumar said: (Jun 7, 2013)  
It is a subtraction series: every number subtracted with 35.

So 439-35=404.

Priyobarta said: (May 29, 2014)  
544-474 = 70.
509-439 = 70.
474-70 = 404.

Angel said: (Jun 20, 2014)  
Difference in the series is of 35.

So next no is 404.

Hope you all will understand.

Sireesha said: (Dec 31, 2014)  
Each number is subtracted by 35.

Varun said: (Nov 28, 2015)  
Its very easy:

544-509 = 35.

474-509 = 35.

474-439 = 35.

439-474 = 35.

439-35 = 404.

Alisha said: (Jan 25, 2016)  
544-35 = 509.
509-35 = 474.
474-35 = 439.
439-35 = 404.

Roshan Roy said: (Mar 9, 2016)  
This is a simple multiplication series. It starts from 544.

544-35 = 509.
509-35 = 474.
474-35 = 439.
439-35 = 404.

Therefore the answer is 404 .

Bali said: (Mar 26, 2016)  
Yes, 404 is correct answer.

Jhansi said: (Aug 24, 2016)  
35 is less than the each number. So the answer is 404.

Manoj said: (Sep 8, 2016)  
544 - 35 = 509,

509 - 35 = 474,

474 - 35 = 439,

439 - 35 = 404,

So, Answer will be 404.

Mukund Munda said: (Sep 15, 2017)  
404 Will be definitely true answer.

Purusottam said: (Oct 10, 2017)  
Thanks @Varun.

Suman said: (Dec 4, 2017)  
Another logic is,

5+4+4=13
5+0+9=14
4+7+4=15
4+3+9=16
4+0+4=8

Srikanth Ambati said: (Feb 20, 2018)  
544= 54, 4
509= 50, 9
474= 47, 4
439= 43, 9
404= 40, 4
Then the ans is 404.

Vaishnavi Gowda said: (Jun 25, 2018)  
Thank you for explaining the answer.

Jahanvi Raghuvanshi said: (Jul 26, 2018)  
544= 54,4 =50-4=50,
509= 50, 9 =50-3=47,
474= 47, 4=47-4=43,
439= 43, 9=43-3=40,
Then, 404= 40 -4; 404 is the ans.

Het said: (Sep 19, 2018)  
Thanks for the answer.

Prafull said: (Jan 23, 2019)  
544-35 = 509
509-35 = 474
474-35 = 439
439-35 = 404 ' so 404 is the answer.

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