A clock is started at noon. By 12 minutes past 4, the hour hand has turned through:

120° 124° 126° 130°

126°

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 12 min (\(\frac{21}{5}\)hrs.) = 30 × \(\frac{21}{5}\) = 126°