A watch which gains time uniformly is 5 minutes slow at 8'O clock in the morning on Sunday and is 5 minutes 48 seconds fast at 8 PM the following Sunday. When was it correct?

• time fm 8 am sundy 2 8pm fllwng sndy=180 hrs
  watch gains 54/5 min in 180 hrs
  so 5 min are gained in 180*5/54*5=83 hrs 20 min=3 days 11 hrs 20 min
  corrct at 20 min past 7pm on wednesday
• 10 years agoHelpfull: Yes(2) No(1)