Discussion
Through how many degrees does the hour hand of a clock move in 3 hours and 20 minutes ?
Answer: B
Correct answer: 100°
The hour hand covers \(360°\) in 12 hours, so it moves \(30°\) per hour, or \(0.5°\) per minute.
\[3 \times 30 + 20 \times 0.5 = 90 + 10 = 100°\]
The minute hand, by contrast, would sweep \(1200°\) in the same interval.
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