AP ICET 2016 Paper

Coding pattern is as follows :
For 1 ≤ n ≤ 26, the nth letter is coded as the rth letter, where r is the remainder
obtained when (7n + 5) is divided by 26 (1 ≤ r ≤ 26).
For decoding reverse process is followed.
e.g For A : n = 1 ⇒ 7n +5 = 12, Remainder (12 ÷ 26) = 12. 12th letter is L.
For B : n = 2 ⇒ 7n +5 = 19, Remainder (19 ÷ 26) = 19. 19th letter is S.
For D : n = 4 ⇒ 7n +5 = 33, Remainder (33 ÷ 26) = 7. 7th letter is G. and so on.
Thus, the codes for various letters are as under :The string of letters coded as TIGER is QHDZM