state gov AP Police SI (Pre+Mains) Mock Test 2022 Logical Reasoning Coding Decoding Coding and Decoding By Letter Shifting
Comprehension Passage
In a certain code, the nth letter (n ≠ 15) of the English alphabet is coded as rth letter of it, where r is the remainder when 5n + 3 is divided by 26. (For instance, the 7th letter G is coded as L since 5.7 + 3 = 38 leaves remainder 12 when divided by 26 and L is the twelfth letter). If n = 15, take r = 26. The inverse process is used to decoding. Based on this, answer the question.
The code for TEXTUUK is
1
BBSYDDF
2
YBSSDDF
3
YBSYDDF
4
YBSYDDD