MasteryExams
Reasoning • Clocks & CalendarsMedium

What is the smaller angle between the hour hand and the minute hand of a clock at 1:50?

A. 245°
B. 120°
C. 115°✓ Correct Answer
D. 90°

💡 Solution & Explanation

Use angle = |30 × H − 5.5 × M|. Here |30 × 1 − 5.5 × 50| = |30 − 275| = 245°. That is more than 180°, so the smaller angle is 360° − 245° = 115°. The 5.5 accounts for the hour hand moving half a degree every minute.

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