If QKKQUGQL is the code for OMISSION, which word is coded as RYVIWZB?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → PATKUBZ
Compare each letter of OMISSION with the letter under it in QKKQUGQL to find the rule:
O → Q (+2), M → K (−2), I → K (+2), S → Q (−2)
S → U (+2), I → G (−2), O → Q (+2), N → L (−2)
So the letters in odd places move 2 forward and those in even places 2 back. To go from a code back to the word, reverse the moves: odd places 2 back, even places 2 forward.
R → P, Y → A, V → T, I → K
W → U, Z → B, B → Z (counting 2 back from B wraps round to Z)
The word is PATKUBZ.