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

5. 

Look at this series: 53, 53, 40, 40, 27, 27, ... What number should come next?

[A]. 12
[B]. 14
[C]. 27
[D]. 53

Answer: Option B

Explanation:

In this series, each number is repeated, then 13 is subtracted to arrive at the next number.

Padma said: (Jan 4, 2011)  
Difference between each set of numbers is 14

Vinay said: (May 9, 2011)  
It's really good. & thanks.

Mahesh said: (May 15, 2011)  
It's help really well to me. Thanks alots.

Soubhagya said: (May 18, 2011)  
If we add 53 and 53 like wise 40 and 40then subtract 106-80 the diff. Is 26 and at last adding 27 and 27 sums to 54 then subtract 26 it's 28 and 28 comes adding 14, 14.

Payal Mahajan said: (May 21, 2011)  
Difference between 53 - 40 is 13 & 40 - 27 is 13.

So 27 - 13 = 14 is answer.

Anil said: (May 25, 2011)  
What is the number after this series: 6, 3 ,3, 4.5, 9, 22.5, _?

Sundar said: (May 25, 2011)  
Given:

6, 3, 3, 4.5, 9, 22.5, ?

Write the diff b/w numbers of the given series:

-3, 0, 1.5, 4.5, 13.5,

This is clue to find answer.

V.Vinodkumar said: (Jul 8, 2011)  
@Anil

Your question is very good. The answer is 67.5

The series is 6,3,3,4.5,9,22.5,67.5
Explanation:
second number is divided by first number and so on that is
3/6=1/2=0.5
3/3 =1
4.5/3 =1.5
9/4.5 =2
22.5/9 =2.5
The division of difference is increased by o.5
The calculation of last number:
x/22.7 =3 because after 2.5 the difference is 3 thats why
x=3*22.7
x=67.5 this is answer

Majid Yaseen said: (Dec 5, 2011)  
6,3,3,4.5,9,22.5 . . .?

The first value i.e 6 is multiplied by 0.5 to get the next number i.e. 3, now to get the next number after this 3 is multiplied by (0.5+0.5=1) to have the third number 3, and in a similar fashion it is multiplied by (0.5+0.5+0.5=1.5) to have the next number i.e. 3*1.5=4.5 and then 4.5 is multiplied by (0.5+0.5+0.5+0.5=2) to get 9 and finally now 9 is multiplied by (0.5+0.5+0.5+0.5+0.5=2.5) to get 22.5; now if you people look at the whole process, it is clear that the number which we multiplied to get the next number is increasing by 0.5,

So we must multiply (0.5+0.5+0.5+0.5+0.5+0.5=3) with 22.5 to get the next number which is 67.5

Simanchal said: (Dec 15, 2011)  
53-13=40
40-13=27
27-13=14

Sahil Suman said: (Apr 10, 2012)  
It is so easy. Subtract 13 from 53, 40, 27-13=14ans.

Cherry said: (Jun 4, 2012)  
Here 53-13=40and then taken this no.twice.
40-13=27 next also taken twice.
27-13=14 is answer check it.

Anand said: (Aug 15, 2012)  
53-0=53.
53-13=40.
40-0=40.
40-13=27.
27-0=27.
27-13=14.
Answer 14.

Shania said: (Sep 10, 2012)  
What are the next 3 numbers in the sequence 0.5,1.5,4.4,13.5 ?

Geethanjali said: (Dec 17, 2012)  
53-40=13.
40-27=13.
27-13=14 is the answer.

Lithin said: (Aug 6, 2013)  
53->5+3 = 8.

40->4+0 = 4.

27->2+7 = 9.

8-4 = 4,4+5 = 9, 9-4 = 5. Therefore Ans is 14-> 1 = 4 = 5.

Bhaskaranand said: (Dec 6, 2013)  
53-40 = 13.
40-27 = 13.
27-14 = 13.
Answer is = 14.

Daniel said: (Dec 23, 2013)  
What is the correct answer for the sequence.

0. 5, 1.5, 4.4, 13.5, ?

Girish said: (Feb 10, 2014)  
Answer is 0.5 second one 0.5*3 = 1.5.

1.5*3-0.1 = 4.4.
4.4*3+0.2 = 13.5.
14.5*3-0.3 = Answer.

Harry said: (Apr 11, 2014)  
@Harry.

The simple method use.
First see the difference b/w 53-40, than 40-27.

So you can 27-13 = 14.

Praveena Pullela said: (May 9, 2014)  
The answer is 14 since the difference between each of the numbers in the series is 13.

Sandeep Singh said: (Jul 2, 2014)  
53-13 = 40.
40-13 = 27.
27-13 = 14.

Answer :14.

Rasmita. said: (Jul 10, 2014)  
53 - 40 = 13.
40 - 27 = 13.
27 - 14 = 13 So ans is 14.

Preeti said: (Jul 24, 2014)  
6*9-1 = 53.
6*7-2 = 40.
6*5-3 = 27.
6*3-4 = 14.

So answer is 14.

Krishna Chaitanya said: (Nov 23, 2014)  
53-26 = 27.
40-26 = 14.

So, answer is "14".

Pavithkumar said: (Jun 9, 2015)  
Just subtracted 13 in each number=14.

Duschanko said: (Jul 21, 2015)  
What is the next?

3, 6, 9, 24, 45...

And why? Thank you.

Satwik said: (Aug 27, 2015)  
It's really good.

Tonya said: (Sep 21, 2015)  
At whatever point I have a discussion about dresses, I regularly find that the vast majority have a powerful urge on ready made dresses, Why? because ready made stuff is always preferred in this busy schedule life. Yet, here\'s the thing.

A.G Rao said: (Oct 23, 2015)  
This to simple logic (53, 53, 40, 40, 27, 27).

Total tree numbers in subtracted 53-13 = 40.

40-13 = 27.
27-13 = 14.

The correct answer is 14.

Sunirani Mahanta said: (Nov 21, 2015)  
1st & 2nd number is same but 3rd number is 13 gap. So answer is 27-13 = 14.

Alisha said: (Jan 19, 2016)  
53, 53-0 = 53, 53-13 = 40, 40-0 = 40, 40-13 = 27, 27-0 = 27, 27-13 = 14.

Answer: 14.

Sweety Sharma said: (May 13, 2016)  
53 - 40 = 13.
40 - 27 = 13.
27 - 13 = 14.

Ans: 14.

Ravanpreet said: (May 20, 2016)  
It's good to learn the logical things to solve the number series.

Bhupathi said: (May 28, 2016)  
Thank you all for explaining the problem.

Jasim said: (Aug 5, 2016)  
I think the correct answer is 13.

M.Raghuram Pgdm 1 said: (Aug 24, 2016)  
Logic: Taking difference 13 for every two repeated numbers so the answer is 14.

Jhansi said: (Aug 24, 2016)  
13 is subtracted from the arraived number.

K.Sujitha said: (Aug 24, 2016)  
53 - 13 = 40,
40 - 13 = 27,
27 - 13 = 14.

Vivek Kumar said: (Sep 26, 2016)  
What is the next number in the sequence 10, 10, 16, 40, 100 ?

Khokhar said: (Sep 28, 2016)  
53 - 13 = 40,
40 - 13 = 27,
27 - 13 = 14.

Abhi said: (Nov 10, 2016)  
Series 7, 7, 28, 252, ?.

What no will come in the place of question mark, And what pattern are running?

Shobhit Mishra said: (Dec 9, 2016)  
Good explanation and thank you.

Ganesh Gehlot said: (Dec 12, 2016)  
Series 53, 53, 40, 40, 27, 27,.....
So 53 - 13 = 40
40 - 13 = 27
27 - 13 = 14.

So according to me, this answer is 14 correct.

Mahi said: (Jan 4, 2017)  
Series 53, 53, 40, 40, 27, 27, .....
So 53 - 13 = 40
40 - 13 = 27
27 - 13 = 14.

So, 14 is correct.

Mahi said: (Jan 4, 2017)  
Thank you all for this discussion, it's really helpful.

Nive Murugavel said: (Feb 4, 2017)  
These questions are very useful for me.

Thanks for posting this with an explanation.

Surya said: (Feb 5, 2017)  
2, 6, 31, 95, _.

Find the next number.

Krishna Mandal said: (Feb 19, 2017)  
53-40 =13,
40-27 =13,
27-13 =14.


So answer is 14 option (B).

Ashu said: (Mar 12, 2017)  
3, 1.5, 1.5, 2.25, 4.5, ...

A) 7.5
B) 9.25
C) 11.25
D) 13.75

Solve it.

Nikku said: (Apr 18, 2017)  
Thank you for all the given explanation.

Rucha said: (Apr 19, 2017)  
Thanks for explaining this.

Annie said: (Apr 24, 2017)  
Solve this 53, 54, 25, ?, 15.5, 82.5.

Can anyone give me the correct answer?

Sk Ismail said: (Aug 11, 2017)  
This is a very useful, Thank you very much.

Mobin Jinnah said: (Aug 15, 2017)  
4,12,7.5,10.5,11,9,14.5 what is next number? Can anyone tell me?

Yogi said: (Aug 31, 2017)  
4.5, 4,6, 13.5, ?, 217.5 what will be a question mark?

Please answer this.

Anand said: (Nov 10, 2017)  
What is next number in sequence 23, 24, 28, 37, 53?

Ullas said: (Jan 22, 2018)  
53, 53, 40, 40, 27, 27.

53-40=13.
53-40=13.
40-27=13.
40-27=13.
27-13=14.
So, answer =14.

Anne Clarice said: (Mar 9, 2018)  
53-40=13,
40-27=27,
27-13=14.

Alok said: (Mar 12, 2018)  
50-40= 13,
40-27= 27,
27-13= 14,

Swaraj said: (Mar 21, 2018)  
4, 5, 9, 20, 52.5 what is the next number? Please, anyone explain the answer.

Jitendra said: (Mar 29, 2018)  
Explain the answer.

Bhagyalakshmi Dayal said: (Apr 4, 2018)  
What will be the next no of the series 1 6 24 60 120 210?

Please, anyone, solve this.

Bhagyalakshmi Dayal said: (Apr 4, 2018)  
What will be the next no of the series 1 6 24 60 120 210?

Please, anyone, solve this.

Tulasi said: (Jul 7, 2018)  
2 3 9 11 14 19 20 22 ?.

Please solve this.

Daswanth Reddy said: (Sep 1, 2018)  
Nice, thank you all for explaining this.

Balakathamuthu G said: (Sep 12, 2018)  
Very useful explanation. Thanks all.

Varsha said: (Sep 16, 2018)  
Nice, Thanks all.

Sohaib Akhtar said: (Mar 23, 2019)  
Thanks All for explaining.

Dimple said: (Apr 22, 2019)  
What should come in place of the question mark?

6, 3, 3, 6, 24, ?

Post your comments here:

Name *:

Email   : (optional)

» Your comments will be displayed only after manual approval.