Three clocks were set to true time.First run exact time.second slows one per day.third gains one min per day.After how many days they will show true time

• the 3 clocks will show same time, when the slower watch becomes exactly 12 hrs behind n faster becomes exactly 12 hrs ahead
  
  now 12 hrs = 720 min
  
  these watches gain n lose 1 min per day...
  
  so all three clocks will show true time after 720 days
• 12 years agoHelpfull: Yes(8) No(4)
• since given 1 clock gain 1 min / day so after 720 days its time will get match with exact time clock......But when we consider another clock which slows 1 sec /day it will get match with exact clock time after 50400 days.
  In order to match time of three clock , in my opinion after 50400 days thrice of clock will show correct answer.
• 12 years agoHelpfull: Yes(2) No(3)
• All the three clocks will show the true time when one faulty clock which losses 1 min/day will be 12 hours behind the correct time and the one faulty clock which gains 1 min/day will be 12 hours ahead of the true time.
  
  Total minutes in 12 hours = 12 × 60 = 720 minutes
  
  Hence, the number of days required = 720 days
• 6 years agoHelpfull: Yes(0) No(0)