A clock is started at noon. By 10 minutes past 5, the hour hand has turned through:

A. 145º
B. 150º
C. 155º
D. 160º

• Ans. C. 155 degrees
  
  In 12 hrs, hour hand takes one round i.e it moves by 360 degrees.
  So in 1 hr, hour hand moves by 30 degrees.
  In 10 min, hour mand moves by 30*10/60= 5 degrees
  Therefore, In 5 hr 10 mins , hour hand moves by 30*5 + 5 = 155 degrees
  
• 12 years agoHelpfull: Yes(30) No(0)
• In 1 hr, hour hand moves by 30 deg .
  In 10 min, hour mand moves by 30/6= 5 deg
  In 5 hr 10 mins , hour hand moves by 30*5 + 5 = 155 deg ... option C
• 12 years agoHelpfull: Yes(10) No(5)
• hence complete 360 degree and in 1 hr 30 degree so in 10 minute =30*10/60=5
  now past 5hr and 10 min will be 30*5+5=155
  Option: C
• 11 years agoHelpfull: Yes(4) No(3)
• 12 hrs-------360deg
  (5:10 pm)5+10/60--------360/12 * 31/6
  = 155 deg
• 11 years agoHelpfull: Yes(4) No(0)
• 30*5 + 5 = 155"
• 9 years agoHelpfull: Yes(2) No(2)
• Ans.c.155 degrees
  in 12 hrs hands take 1 round it has moved by 360 degree
  and in 1hr hand moves to 30 degree
  and in 10mins hand moves on 30*10/60=5degree
  so... in 5hrs 10mins,hand moves on 30*5+5=155degrees
• 8 years agoHelpfull: Yes(1) No(0)
• 12HR = 360DEG
  1HR= 30DEG
  5HR =150 DEG
  SO HR HAND WILL ROTATE 150DEGREES
• 8 years agoHelpfull: Yes(0) No(0)
• 155 degree
  
• 8 years agoHelpfull: Yes(0) No(1)
• 10min past 5 so, 5 hours 10 min
  5*10/60 =5
  12hours=360
  =360/12*5
  =155
  so the ans is 155
• 8 years agoHelpfull: Yes(0) No(1)
• B.155
  10 minutes past 5= 4:50
  angle= 6y-(30x+y/2) where x is hrs y is min
  6*50 - (120+50/2) = 155
• 7 years agoHelpfull: Yes(0) No(0)
• ans is 155
  
• 7 years agoHelpfull: Yes(0) No(0)
• 10 minutes past 5= 4:50
  6*50 - (120+50/2) = 155
  so ans is c.
• 7 years agoHelpfull: Yes(0) No(0)
• at 5 hour hand will make (360/12) * 5 =150 deg
  for 10 min more, it will make (30*(10/60)) = 5 deg more
  so, ans will be 150+5 = 155 deg
• 7 years agoHelpfull: Yes(0) No(0)