An accurate clock shows 8:30 O’clock in the morning. Through how may degrees will the hour hand rotate when the clock shows 1:40 O’clock in the afternoon? 1) 145º 2) 150º 3) 155º 4) 160º

• diffrenve between 8:30 to 1:30 5 hours
  in 1 hour hourhand rotate 30 degrees
  for 5 hours it rotate 150 degrees
  for that extra 10 min hour rotate 5 degrees each
• 5 years agoHelpfull: Yes(3) No(0)
• 180 min = 90 degree
  total min =310
  degree =310/2=155
• 5 years agoHelpfull: Yes(2) No(0)
• from 8:30 to 9 o'clock = 15 degree
  from 9 to 1 o'clock = 120 degree
  from 1 to 1:40 = 20 degree
  120 + 20 + 15 = 155 degree
• 4 years agoHelpfull: Yes(0) No(0)