If the minute hand of a clock is at 12 and the hour hand is at 4, what is the angle between the two hands?
Answer: B. 150 degrees
Each hour represents 30 degrees (360 degrees/12 hours). At 4:00, the hour hand is at 120 degrees (4*30). The minute hand at 12 is at 0 degrees. The angle between them is 120 degrees.