Four 12 hour clocks are lined up. The first reads 10:41 and loses 2hours and 24 minutes a day. The second reads 4:50 and loses 45 minutes a day. The third reads 3:45 and gains 1hour and 20 minutes a day. The fourth reads 1:05 and keeps perfect time. How long will it be before all four clocks reads exactly the same time? . Ap has given the answer as 709 days. Can anybody improve the answer and find less no of days when four clocks read exactly same time?