Solved IB ACIO Question
A solved IB ACIO PYQ — decoded step-by-step.
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Q · Alphabet Testmedium · 45s
Find the missing term in the series: C, E, I, M, ?
TopicAlphabet Test
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.
The letter positions increase by 2, 4, 4, and 6 respectively: C(3), E(5), I(9), M(13), so next is T(20).
Final Answer: Option D — T