Solved IB ACIO Question
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Q · Direction Sensemedium · 45s
B is 11 km south of A. A moves 7 km south, right 8 km west, left 9 km south. B moves 9 km north. Where is A from B now?
TopicDirection Sense
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.
A's position relative to its start: 7 + 9 = 16 km south, 8 km west.- B's position relative to its start: 11 km south – 9 km north = 2 km south.- Position of A relative to B: (16 – 2) km = 14 km south, and 8 km west.- Therefore, from B’s frame, A lies in the North-East direction.
Final Answer: Option B — North-East