A clock is started at noon. By 15 minutes past 4, the hour hand has turned through:
Answer & explanation
Correct answer: option 3
Hour hand makes the angle in 12 hours = 360°
Hour hand makes the angle in 1 hour = 30°
Angle traced by hour hand in 4 hours 15 min (\(\frac{17}{4}\)hrs.) = 30 × \(\frac{17}{4}\) = 127.5°