Solved IB ACIO Question
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Q · Order and Rankingmedium · 45s
In a queue of 20, M is 11th from the front and N is 6th from the back. How many are between?
TopicOrder and Ranking
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.
B’s position from front = 20 - 6 + 1 = 15; number between = 15 - 11 - 1 = 3.
Final Answer: Option C — 5