• Placement Papers
• /
• TCS
• /
• Logical Reasoning
• /
• Letter Series

TCS Question Papers: TCS Interview Experience(91) TCS Company Profile

(#M40155068) TCS Logical Reasoning question asked on 13 dec Keep an EYE

1) a,bb,ccc,dddd,eeeee,ffffff,........................zzz
what is 120 th letter

Asked In TCS gec (9 years ago)

Unsolved Read Solution (9)

Is this Puzzle helpful?   (41)   (14) Submit Your Solution Letter Series

Read Solution (9) :

Lalit Kumar Patel  (9 years ago)

series is : 1,2,3,4,5.........
So
120= nx(n+1)/2
or 240=15x16
so n=15
since the 15th letter is "O"...hence the answer will be "O".

Is this solution Helpfull? Yes (28) | No   

MythiliMuruganantham  (9 years ago)

series:1,2,3,4,5.....
So,
120=1+2+3+...+N
let N=15
n=n*(n+1)/2
=15*16/2
=120
N=15
15th letter is "O".

Ans: O

Is this solution Helpfull? Yes (9) | No (1)  

Mal reddy  (9 years ago)

Series is like:1,2,3,4,5,6,7,8,.................26
so Given number=120
for that we have to guess on which number it falls by formula:Sum=n*(n-1)/2
I think 16th number ll give proper position i,e 16*(15)/2=120
So on 16th position 'P'will fall,
So my ans is ''P''.

Is this solution Helpfull? Yes (7) | No (6)  

Harish  (9 years ago)

answer 'k'

Is this solution Helpfull? Yes (2) | No (3)  

dhiraj kumar  (9 years ago)

answer is "k"

Is this solution Helpfull? Yes (1) | No (6)  

gopal  (9 years ago)

p 120 times
104=z
and later on count to 120 again from a

Is this solution Helpfull? Yes | No (3)  

vorsu shilpa  (9 years ago)

a -1
b -2
c -3
.
.
.
and so on up to n - 14 .. total sum= 105
o - 15 ==105+15 =120
ans is "o"

Is this solution Helpfull? Yes | No (1)  

subha  (6 years ago)

series is : 1,2,3,4,5.........
So
120= nx(n+1)/2
or 240=15x16
so n=15
since the 15th letter is "O"...hence the answer will be "O".

Is this solution Helpfull? Yes | No   

Kenzo  (5 Months ago)

Out of 26 letters "a" is the 1st one hence there is only "a" similar way "b" is 2nd therefore "bb".
In this way we will reach the 120th letter by adding the letters of the given sequence up to 15th letter i.e
1+2+3+4+......+15=120 , which is "o".
Therefore the answer is letter "o"

Is this solution Helpfull? Yes | No   

Please Login to Read Solution.