next letter of the sequence A, F, O, B, S, ..... will be

M4maths Previous Puzzles

26 Jul 2012 alphabet

next letter of the sequence
A, F, O, B, S, .....
will be

OPtion

1) Z
2) X
3) J
4) D
5) U
6) N
7) W
8) L
9) S
10) None of these

Solution

A...BCDE...F 4
F...GHIJKLMN...O 8
O...PQRSTUVWXYZA...B 12
similarly other gap will be 16, 20

Correct Option: 6 Best Solution (21)

ashutosh   12 years AGO

A to F=4 letter
F to B=8 letter
B to O=12 letter
O to S=16 letter
S to N=20 letter
so answer is N

Like? Yes (5) | No (3)  

IQBAL MEHDI   12 years AGO

The number of letters b/w
A and F is 4
F and O is 8
O and B is 12
B and S is 16
now,
The no. of letters between S and ? should be 20
hence,
The number of letters b/w
S and N is 20.
so,N will be the next letter of the sequence.

Like? Yes (4) | No (3)  

DANISH EQUBAL   12 years AGO

The number of words b/w
A and F is 4
F and O is 8
O and B is 12
and so on.

Like? Yes (3) | No (2)  

ramyachitra   12 years AGO

1st and 2nd term differs by 4
2nd term and 3rd term by 8
(4*1,4*2,...4*5)
and so on so 5th term and 6th term by 20 so aftr s 21st term is 'n'
(counted in a circle)

Like? Yes (1) | No   

pradeep kumar korikana   12 years AGO

difference between the letters is multiple of 4

Like? Yes (3) | No (2)  

Pranaya   12 years AGO

gap between two character (excluding charatcer) becomes 4n, therefore it becomes series like
A->F=4;
F->O=8;
O->B=12;
B->S=16;
(4,8,12,16)
S->N=20.
hence next character must be N.

Like? Yes (1) | No   

Karthick Babu   12 years AGO

A+4=F
F+8=O
O+12=B
B+16=S
S+20=N

Like? Yes (2) | No (2)  

PARAG KAMRA   12 years AGO

THERE IS DIFFERENCE OF 4
FOR EX DIFF B/W A ND F IS 4
F AND O IS 8 AND SO ON
SO AFTER S THERE WILL BE DIFF OF 20 SO N WILL COME

Like? Yes (2) | No (2)  

Ajay Kashyap   12 years AGO

difference between two is as
+4,+8,+12,+16,+20

Like? Yes (2) | No (2)  

sonam tripathy   12 years AGO

A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z
1st word is A
after 4*1=4words,2nd word comes i.e F
2nd word is F
after 4*2=8words,3rd word comes i.e O
3rd word is O
after 4*3=12words,4th word comes i.e B
4th word is B
after 4*4=16words,5th word comes i.e S
5th word is S
after 4*5=20words,6th word comes i.e N
6th word is N
sequence is A,F,O,B,S,N

Like? Yes (2) | No (2)  

poornima   12 years AGO

because the difference between the numbers of the letters is 4
so the answer is n

Like? Yes (2) | No (2)  

prashanthi   12 years AGO

A to f in b/w letters=4
f to o in b/w letters=8
o to b in b/w letters=12
b to s in b/w letters=16
so all these are multiples of 4 nxt numb is 20 so s to n in b/w letters=20

Like? Yes (2) | No (2)  

vignesh waran A   12 years AGO

I put no's 1 6 15 2 19 ?

diff seq among 2nd & 1st no'

5 9 -13 17 ?

?=21

21 +19=40
40 % 26=14=N

Like? Yes (2) | No (2)  

GIRISH TYAGI   12 years AGO

A +4 = F +8 = O +12 = B +16 = S + 20 = N
so N will be next alphabet.

Like? Yes (3) | No (4)  

somya kulshrestha   12 years AGO

A,F,O,B,S,.....
alphabets occur in a multiple of 4 i.e. F after 4 alphabets and O after 8 alphabets and B after 12 and S after 16 thus they follow a pattern of 1,4,8,12,16,20,.... thus next letter after S is N.

Like? Yes (1) | No (2)  

phani   12 years AGO

letters are in order 1,6,15,28,45
the series of difference is:5,9,13,17 and next must be 21
66th letter is next one=26 lettrs one series
52 letters another one
14 th letter n is next one

Like? Yes (1) | No (2)  

phani   12 years AGO

letters are in order 1,6,15,28,45
the series of difference is:5,9,13,17 and next must be 21
66th letter is next one= 14 th letter N is next one

Like? Yes (1) | No (2)  

Gulshan Kumar   12 years AGO

Series is in form of :
A,F,O,B,S....
Difference between the adjacent alphabets is as.
4,8,12,16,20

Hence after S skipping 20 alphabets
=> N
Therefore 6th option is correct

Like? Yes (1) | No (2)  

sagar arora   12 years AGO

Gap between next letter is in the multiple of 4

Like? Yes (1) | No (2)  

Narender Bhardwaj   12 years AGO

A-F=4,
F-O=8,
O-B=12,
B-S=16,
Hence next character is 16+4=20=N

Like? Yes (1) | No (2)  

kiran ks   12 years AGO

The difference between successive alphabets are in the series of differences 4,8,12,16,20
So, the difference between S and N is 20. Hence it is the answer

Like? Yes (1) | No (2)