Question

Q. In an encryption device, ‘WORD’ is coded as “DOID’ and ‘PROM’ is coded as ‘KRLM’, then how will you code ‘DORM’?

• A. DOIN
• B. DLON
• C. WOIM
• D. DOIM

Answer 1

The correct option is C WOIM

Explanation:

• WORD → DOID
• PROM → KRLM

Letters in even places are the same, while letters in odd places are the opposite of the original letter (W is the 23rd letter in alphabetical order and D is 23rd in reverse alphabetical order. Similarly, R is the 18th letter in alphabetical order, while I is the 18th letter in reverse alphabetical order).

The second and last letters will be O, and M itself. D (the first letter of DORM) is the 4th letter in alphabetical order, and hence, the first letter in the coded form will be 4th letter in reverse alphabetical order → W

So,

• DORM → WOIM is the correct code.