Solved IB ACIO Question
A solved IB ACIO PYQ — decoded step-by-step.
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Q · Missing Numbermedium · 45s
Find the missing number: 1, 2, 4, 7, 11, ?
TopicMissing Number
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.
Increments: +1, +2, +3, +4, next is +5 → 11 + 5 = 16.
Final Answer: Option C — 17