Solved IB ACIO Question
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Q · Coding–Decodingmedium · 45s
In a certain code language, DOOR is written as 1234; BOOK as 3345. What is the code for COOK?
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 mapped: D=1, O=3, R=4, B=3, K=5, C=2; COOK → 2335.
Final Answer: Option B — 3445