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At what angle are the hands of a clock inclined at 15 minutes past 4?

  • A.32°
  • B.37°
  • C.32.5°
  • D.37.5°

Answer: D

At 4 o’ clock, the hour hand is at 120° from the vertical.
In 15 minutes,
Hour hand = 120 + 15 x (0.5) = 120 + 7.5 = 127.5° (The hour hand moves at 0.5 dpm)
Minute hand = 15 x (6) = 90° (The minute hand moves at 6 dpm)
Difference or Angle between the hands = 127.5 – 90 = 37.5°

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