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 angle between the hour and minute hand at 1:45?
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.
Hour hand at (1*30 + 45*0.5) = 52.5°, minute hand at 270°; difference is 217.5°, smaller angle is 142.5°.
Final Answer: Option C — 142.5°