Solved IB ACIO Question
A solved IB ACIO PYQ — decoded step-by-step.
Solve it the standard way once — then learn the shortcut.
Q · Clockmedium · 45s
What is the time when the clock hands form a 90° angle between 1 and 2 o’clock?
TopicClock
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.
Right angles occur twice every hour; calculated times are (15/11) and (45/11) minutes past the hour.
Final Answer: Option A — 1:16 22/11