Solved IB ACIO Question
A solved IB ACIO PYQ — decoded step-by-step.
Solve it the standard way once — then learn the shortcut.
Q · Coding–Decodingmedium · 45s
If BRAIN is ZYXWV and CREATE is UYTXST, how is CERTAIN coded?
TopicCoding–Decoding
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.25
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Letters replaced by corresponding opposite of alphabet.
Final Answer: Option A — UTYSXWV