Correct Answer - Option 4 : N
Number the letter of the word 'BENEFICIAL' as:
B |
E |
N |
E |
F |
I |
C |
I |
A |
L |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
Now interchange the position of the first and sixth letters position similarly the positions of the second and seventh letters are interchanged and so on,
I |
C |
I |
A |
L |
B |
E |
N |
E |
F |
6 |
7 |
8 |
9 |
10 |
1 |
2 |
3 |
4 |
5 |
Then letter 'N' will be third from the right end after rearrangement which is shown above.
Hence, ‘N’ is the correct answer.