A grandfather clock was set right at 6:30 am. This old clock loses 2 minutes and 30seconds every 52 minutes. What is the correct time when the clock shows 12.15 am

• Ans :--> 01:06:01(hour:min:sec) Am ( in the morning)
  Explanation==>
  total minutes between 6:30 Am to 12:15 Am is 1065 minutes
  Now number of times 52 min repeated in 1065 ==> 1065/52 ==> 20.480 times (approx).
  Given that every on 52 min clock looses 2min and 30 sec (2.5 min approx);
  
  So for 20.480 times clock will loose ==> 20.480 * 2.5 ==> 51.2 min
  
  Now time is 12:15 Am , So add 51.2 min from it we will get 01:06:01 (hour:min:sec)Am
  
  So Ans : 01:06:01 Am is the correct time when time in Daddu's watch is 12:15 Am
• 10 years agoHelpfull: Yes(12) No(3)
• 11.59 is answer
• 10 years agoHelpfull: Yes(3) No(4)
• answer is approx 11:24 pm
  difference in time between 6:30 am and 12:15 am will be 1065 minutes
  the clock looses 2mn 30 sec every 52 minutes
  therefore it will loose approx 51 minutes
• 9 years agoHelpfull: Yes(3) No(3)
• Approx. 1:09 AM will be right time when clock shows 12.15 am.
• 12 years agoHelpfull: Yes(1) No(6)
• can anyone explain it?
• 10 years agoHelpfull: Yes(1) No(2)
• total no, of min between 6.30 to 12.15=1125min
  it says the clock r lagging after 52 min therefore no.of times it lagging=1125/52=21.63 now at one time it lags 2.5 min therefore total time it is lagging=2.5*21.63=>54.086
  ans=12.15am +54.086 min=>1.09
• 9 years agoHelpfull: Yes(0) No(1)