Clocks

  • A clock has two hands. The smaller hand is the hour hand, while the larger one is the minute hand.
  • Speed of the hour hand = .5 degrees per minute
  • Speed of the minute hand = 6 degrees per minute
  • At ‘n’ o clock, the angle of the hour hand from the vertical is 30n
  • Hands of a clock meet at a gap of 65 5/11 minutes
  • Hands of a clock meet 11 times in 12 hours and 22 times in a day
  • Hands of a clock are perfectly opposite to each other 11 times in 12 hours and 22 times in a day
  • Any other angle is made 22 times in 12 hours and 44 times in a day
  • Hour hand traces 360º in 12 hours, while minute hand traces 360º in 1 hour.
  • If the clock displays 7 : 05 am when the actual time is 7 : 00 am, the clock is said to be 5 minutes fast.
  • If the clock displays 6 : 55 am when the actual time is 7 : 00 am, the clock is said to be 5 minutes slow.