Solved IB ACIO Question
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Q · Order and Rankingmedium · 45s
In a race of 20 students, A is 9th from the front and B is 6th from the back. How many students are between A and B?
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.
Position of B from front = 20 - 6 + 1 = 15. Students between A and B = 15 - 9 - 1 = 5.
Final Answer: Option B — 5