What is the next number of the following sequence 3,9,19,33,.......

Akanksha Mishra   11 years AGO

Look upon the series Carefully
3,9,19,33...

9 - 3 = 6
19 - 9 = 10
33 - 19 = 14

look at difference of ans is 4
6,10,14,...
so next difference of 5th and 4th number will be 18

4th number + 18 = 5th number
33 + 18 = 51
so answer will be 51(option 3)

Like? Yes (17) | No (5)  

A.Sivapriya   11 years AGO

sequence is 1+2*(n^2)
so, from the sequence next number is 5
this gives 1+2*25=51

Like? Yes (6) | No (3)  

LOGAN WOLVERINE   11 years AGO

3+6=9;
9+10=19;(6+4=10)
19+14=33;(10+4=14)
next difference number is 14+4=18;
so 33+18=51
option 3

Like? Yes (3) | No   

Sajib Ghosh   11 years AGO

51
x(n)=1+2*(n^2)
x(1)=3;x(2)=9;x(3)=19;x(5)=51

Like? Yes (2) | No   

Rahul gulati   11 years AGO

3 9 19 33 ...
difference is-
6 10 14 ...
difference is-
4 4 4 ...
so it should be :
3 9 19 33 (51)
difference is-
6 10 14 (18)
difference is-
4 4 4 (4)

Like? Yes (2) | No   

Shubham Saxena   11 years AGO

3
9
19
33
51
Difference b/w 9 & 3 is 6
Difference b/w 19 & 9 is 10
Difference b/w 33 & 19 is 14
Difference b/w 51 & 33 is 18
so the difference is 4
Answer is 51

Like? Yes (5) | No (3)  

Gurmeet Singh   11 years AGO

9-3=6
19-9=10
33-19=14
51-33=18

Like? Yes (2) | No   

Arpit Jain   11 years AGO

9-3=6
19-9=10
33-19=14
difference is 4
so 33+18=51
answer (3)

Like? Yes (2) | No   

babita   11 years AGO

common differeces btw each no. are having a common difference of 4.

Like? Yes (2) | No   

Naveen Pandey   11 years AGO

the diff between consecutive numbers are 6,10,14..hence the next increase will be of 18...so the answer will be 33+18=51

Like? Yes (2) | No   

suvradeb kundu   11 years AGO

9-3=6 19-9=10 33-19=14 51-33=18

Like? Yes (2) | No   

Mahak   11 years AGO

there is difference of 4 in dirrerence b/w every successive no.

Like? Yes (2) | No   

prakash kumar   11 years AGO

difference between 3 & 9 = 6
difference between 9 & 19 = 10
difference between 6 & 10 = 4
next no.=10+4+19=33
similarly,14-10=4
4+14+33=51

Like? Yes (2) | No   

adnan   11 years AGO

3+6=9
9+10=19
19+14=33
33+18=51

Like? Yes (2) | No   

P.SWETHA   11 years AGO

9-3=6
19-9=10
33-19=14
and
6+4=10,10+4=14,so 14+4=18
means x-33=18,x=51

Like? Yes (2) | No   

thota anil kumar   11 years AGO

difference+4 is the increment

Like? Yes (2) | No   

upendra singh chahar   11 years AGO

9-3=6
19-9=10
33-19=14
51-33=18
each time difference get increased by 4.

Like? Yes (1) | No   

Payal Prajapati   11 years AGO

+6, +10, +14, +18 = 51

Like? Yes (2) | No (1)  

Shivaraj Karrolla   11 years AGO

bcoz difference in the form of 4,10,14,18,,,,

Like? Yes (1) | No   

R.RAVIKUMAR   11 years AGO

The sequence follows as 1+2*(n^2)
1+2*1=3
1+2*4=9
1+2*9=19
1+2*16=33
1+2*25=51

Like? Yes (2) | No (2)  

ROHIT UPADHYAY   11 years AGO

2*25 + 1

Like? Yes (2) | No (2)  

D.Mamatha   11 years AGO

the given sequence follows that 1+2*(n^2)
where n=1,2,3,4,5...
so, from the sequence next number is 5
this gives
1+2*(5^2)=1+2*25=51

Like? Yes (3) | No (3)  

Aditya Verma   11 years AGO

series 3,9,19,33,...
difference b/w two terms
9-3=6
19-9=10
33-19=14
x-33=18
x=51
next number is 51
option 3

Like? Yes (2) | No (2)  

Balakumaran N.A   11 years AGO

increases by 6,10,14,18,... etc.
33+18 = 51.

Like? Yes (2) | No (2)  

Sunku Mounika   11 years AGO

By the terms itself
3+6=9
9+10=19
19+14=33
So, we can say 33+18=51.
Ans is option 3.

Like? Yes (2) | No (2)  

akhilesh kumar   11 years AGO

in this qstn
9-3=6
19-9=10
33-19=14
51-33=18
so here difference between two number is in order of 4 so the next number is 51
so ans=(3)51

Like? Yes (3) | No (3)  

stutisahoo   11 years AGO

9-3=6
19-9=10
33-19=14
51-33=18
4 difference

Like? Yes (2) | No (2)  

Sneghapriya Ravindran   11 years AGO

Ans: 51
3+6=9
9+10=19
19+14=33
33+18=51

Like? Yes (1) | No (1)  

T.Aravinth kumar   11 years AGO

Given 3, 9, 19, 33..
Take difference between adjacent number s
6, 10, 14,...
Take difference between adjacent numbers
4, 4,...
Then answer=4+14=18.
18+33=51...

Like? Yes (2) | No (2)  

RAKESH ROSHAN   11 years AGO

3 9 19 33
9 - 3 = 6
19 - 9 = 10
33 - 19 = 14
51 - 33 = 18

Like? Yes (2) | No (2)  

Arati Sethi   11 years AGO

the difference of consecutive nos are 6,10,14 so the difference between 4th and 5th no will be 18 so the 5th no is 33+18=51
so Ans:51

Like? Yes (2) | No (2)  

Hemalatha   11 years AGO

3+6=9
9+10=19
19+14=33
33+18=51 so ans 51..

Like? Yes (2) | No (2)  

Narendra Kumar   11 years AGO

3+6=9
9+10=19
19+14=33
33+18=51

Like? Yes (2) | No (2)  

Prabhat Yadav   11 years AGO

+1=51

Like? Yes (2) | No (2)  

Dr.Dipin Singh   11 years AGO

nth term ,Tn is given by 2*n^2 + 1.
T1= 2*1+1=3
T2= 2*2^2+1= 2*4+1=9
..
..
T5= 2*5^2+1= 2*25 +1 =50+1=51 .. option 3.

Like? Yes (4) | No (4)  

sharan kumar    11 years AGO

3,9,19,33,.........
The difference between two consecutive numbers 6,10,14,....
2*3,2*5,2*7,.... so next should be 2*9
that means 33+18=51

Like? Yes (2) | No (2)  

Ankit Goyal   11 years AGO

3
3 + 6
9 + 10
19 + 14
33 + 18 = 51

Like? Yes (2) | No (2)  

haritha   11 years AGO

taking the difference of the consecutive numbers
and again taking the difference between the result we get same number 4.
9-3=6,19-9=10,33-19=14
now
10-6=4,14-10=4
so to get equal difference we add 14+4=18
now add 33+18=51(result)

Like? Yes (2) | No (2)  

THULASIARAVINDH   11 years AGO

1+2(1^2),1+2(2^2),1+2(3^2),....1+2(n^2)

Like? Yes (2) | No (2)  

jagadish   11 years AGO

increase +4
33+14=51

Like? Yes (2) | No (2)  

saranyamanoharan   11 years AGO

each series is added

Like? Yes (2) | No (2)  

Krishna Chaitanya   11 years AGO

Given number series 3,9,19,33 Here difference of their numbers is in AP with common difference=4
9-3=6
19-9=10
33-19=14
so next term in this series is 18 so 18 should be added to 33 to get next term which is 51

Like? Yes (2) | No (2)  

OM PRAKASH JHA   11 years AGO

From the series,
9-3=6
19-9=10
33-19=14
Here the difference between the two consecutive number is in order 6,10,14. thus next will be 18.
hence next number in sequence will be 33+18=51.

Like? Yes (2) | No (2)  

OM PRAKASH JHA   11 years AGO

From the above series,the difference between the two consecutive number is in order 6,10,14.
9-3=6
19-9=10
33-19=14
Thus next difference will be 18 i.e. 51-33=18
Hence next number in sequence will be 33+18=51.

Like? Yes (2) | No (2)  

sandy   11 years AGO

3+6=9
9+10=19
19+14=33
33+18=51

Like? Yes (2) | No (2)  

Keshav Kishlay   11 years AGO

9-3=6
19-9=10
33-19=14
and 10-6=4,14-10=4
so, 14+4=18+33=51

Like? Yes (2) | No (2)  

Priya Dharshini   11 years AGO

the difference between 3and 9 is 6;
the difference between 9 and 19 is 10;
the difference between 19 and 33 is 14;
now see all the diffences are increased by 4;
so 14+4=18;
33+18=51;

Like? Yes (2) | No (2)  

Ganesh Hembram   11 years AGO

ans is \"51\" difference btw 3 and 9 is 6 and the difference btw 19 and 9 is 10 but in every difference we add 4 in differences like 6+4=10 then the nxt value after 9 is 19 and the difference btw 19 and 33 is 14 i.e 10+4=14 likewise add 4 in nxt difference i.e 14+4=18 and the nxt value is \"51\" and the difference btw 33 and 51 is 18.

Like? Yes (2) | No (2)  

Sweta Rahangdale   11 years AGO

there is a diffrence of 4

Like? Yes (2) | No (2)  

Jhansi   11 years AGO

9-3 is 6
19-9 is 10
33-19 is 14

Now 6,10,14

where we can observe as 6,6➕4,6➕4➕4

And 33➕6➕4➕4➕4 is 51

Like? Yes (2) | No (2)  

susmit   11 years AGO

f(x) = 2x^2+1
When x = 1, f(x) = 3
When x = 2, f(x) = 9
When x = 3, f(x) = 19
When x = 4, f(x) = 33
So,
When x = 5, f(x) = 51
Hence,
The next number will be 51
option no.(3)

Like? Yes (1) | No (2)  

Rajasekhar Reddy   11 years AGO

the sequence follows as
1+2*n^2
where n = 1,2,3,4,5,.......
for n = 5
it is 51

Like? Yes (2) | No (3)  

Jigyasa Kumar   11 years AGO

the rule followed is :
3 [+6] 9 [+10] 19 [+14] 33 [+18] 51 [+22] 73
and so on

Like? Yes (1) | No (2)  

siddhanta kumar Behera   11 years AGO

the sequence is 3,9,19,33,....
let the 5th no. be x
now,
9-3=6=3^2
19-9=10=5^2
33-19=14=7^2
so the nextresult must be 9^2=18
x-33=18
=>x=33+18=51...........ANS
so,option 3 is correct

Like? Yes (1) | No (2)  

Aarush Singh   11 years AGO

3 [+6] 9 [+10] 19 [+14] 33 [+18] 51 [+22] 73
and so on

Like? Yes (2) | No (3)  

siddagalla bhaskar   11 years AGO

1+2(n^2)
where n=1,2,3,4,5,...

Like? Yes (1) | No (2)  

satyen nabar   11 years AGO

Difference between number increasing by 4. Difference of 6, 10, 14,..
33+18 =51

Like? Yes (1) | No (2)  

TAREK HAYDER SK   11 years AGO

9-3=6=3*2;19-9=10=5*2;33-19=14=7*2
then next difference will be 9*2=18
so next no is 33+18=51

Like? Yes (1) | No (2)  

P Niranjan   11 years AGO

the series added by 6+4*i (i=0,1,...)
3+(6+4*0) = 9

9+(6+4*1) = 19

19+(6+4*2) = 33

33+(6+4*3) = 51

Like? Yes (1) | No (2)  

mahima srivastava   11 years AGO

series is 3, 9 , 19, 33
taking difference of consecutive terms
9-3=6
19-9=10
33-19=14
6,10,14,18 (difference of 4)
so,
33+18=51

Like? Yes (1) | No (2)  

Pratiksha Gupta   11 years AGO

3
9
19
33
51
Difference b/w 9 & 3 is 6
Difference b/w 19 & 9 is 10
Difference b/w 33 & 19 is 14
Difference b/w 51 & 33 is 18
so the difference is 4
Answer is 51

Like? Yes (1) | No (2)  

Shubham Saxena   11 years AGO

3
9
19
33
51
Difference b/w 9 & 3 is 6
Difference b/w 19 & 9 is 10
Difference b/w 33 & 19 is 14
Difference b/w 51 & 33 is 18
so the difference is 4
Answer is 51

Like? Yes (1) | No (2)  

pankaj chandra joshi   11 years AGO

gap is incrsd by 4 so 14+4=18
33+18=51

Like? Yes (1) | No (2)  

vartika mishra   11 years AGO

if we look at the series we get
3+6=9;
6+10=19;
19+14=33;
there is a difference of 4 when we add it;
so next number will be 14+4=18;
thus,next number will be;
33+18=51;
hence 51 is the next number.

Like? Yes (1) | No (2)  

Leelanand Kumar Yalla   11 years AGO

3,9 the difference is 6.
9,19 the difference is 10.
19,33 the difference is 14; here every time +4 is added to first difference. so, now the difference should be 18; that means 51.......

Like? Yes (1) | No (2)  

Praveen kumar   11 years AGO

3 + 6 = 9
9 + 10 = 19 (6+4=10)
19 + 14 = 33 (10+4=14)
33 + 18 = 51 (14+4=18)

Here the difference between the two consecutive number is increasing by 4 so 33+18=51

Like? Yes (1) | No (2)  

Dinesh thatti   11 years AGO

in the above series difference between numbers
are as follows 9-3=6,19-9=10,33-19=14
if we carefully see the results are 6,10,14 so next difference result would be 18 we add 18+33 we get 51

Like? Yes (1) | No (2)  

Hitesh Kulkarni   11 years AGO

3+6=9 9+10=19 19+14=33
Addition of 4 in sequecnce of sum
i.e 3 to 9 (6) 9 to 19 (6+4)
19 to 33(6+4+4) and 33 to 51(6+4+4+4)

Like? Yes (1) | No (2)  

g.soujanya   11 years AGO

3 9 19 33 51
6 10 14 18 //first diff
4 4 4 //second diff

Like? Yes (1) | No (2)  

muthu   11 years AGO

33+18=51

Like? Yes (1) | No (2)  

DHIRENDRA    11 years AGO

given
3,9,19,33,.......
3------------------------3
3+6----------------------9
9+6+4--------------------19
19+6+4+4-----------------33
33+6+4+4+4---------------51

Like? Yes (1) | No (2)  

Nikhil Prathapani   11 years AGO

9-3 = 6
19-9 = 10
33-19 = 14
The difference series is 6,10,14,18
so next number is 33+18 =51.

Like? Yes (1) | No (2)  

thol   11 years AGO

4 is added to every difference

Like? Yes (1) | No (2)  

Surya Narayana K   11 years AGO

Difference between two successive are 6(9-3),10(19-10),14(33-19).
So next number is 33+18 =51

Like? Yes (1) | No (2)  

Mridhula   11 years AGO

the diff btw d consecutive nos is 6,6+4,6+8.hence next term\' diff is 6+12=18.HENCE 33+18=51

Like? Yes (1) | No (2)  

Paras   11 years AGO

3,9,19,33
the difference is 6,10,14,18
add 18+33=51

Like? Yes (2) | No (3)  

Siba Kumar Sahu   11 years AGO

Ans: 51
the difference two consecutive no is increase by 4.
the difference of 1st and 2nd no= 6
the difference of 2nd and 3rd no= 10
the difference of 3rd and 4th no= 14
so the the difference of 4th and 5th no will be 18
there fore the next no will be 33+18=51

Like? Yes (1) | No (2)  

ANSHUL KUMAR   11 years AGO

3 9 19 33 51
6 10 14 18
4 4 4
0 0

Like? Yes (2) | No (3)  

AMIT JAISWAL   11 years AGO

since , 9-3=6
19-9=10
33-19=14

here the difference of the next and previous terms in increasing by 4 each time so next term wiil be 33+18 = 51 answer

Like? Yes (2) | No (3)  

vishal shanker polowalia   11 years AGO

x(n)=1+2(n^2). Here x(1)=3,x(2)=9 and so on

Like? Yes (1) | No (3)  

vishesh thakur singh   11 years AGO

Diff b/w 3 and 9 =6
Diff b/w 9 and 19 =10
Diff b/w 19 and 33 =14
So 33+18=51

Like? Yes (1) | No (3)  

pavithra   11 years AGO

3,9,19,33...
diff between 3&9-->6,9&19-->10,19&33-->14...
their resultant differs by 4.. i.e 6,10,14..
therefore next could be 18 .. if added with 33+18 we get 51 as the answer

Like? Yes (1) | No (3)  

amit bhagat   11 years AGO

since , 9-3=6
19-9=10
33-19=14

here the difference of the next and previous terms in increasing by 4 each time so next term wiil be 33+18 = 51 answer

Like? Yes (1) | No (3)  

julee verma   11 years AGO

since 9-3=6
19-9=10(6+4)
33-19=14(10+4)
so next number will be 33+18=51

Like? Yes (1) | No (3)  

Anucia Mary A   11 years AGO

difference between 3 and 9 is 6
difference between 9 and 19 is 10
difference between 19 and 33 is 14
difference between 6 and 10 is 4
likewise will be others
so
the next number should be 33+18=51

Like? Yes (2) | No (4)