Answer:
1st set of clocks: Clock A=1:18 Clock B=2:53 Time elapsed=1 hour and 35 mins
2nd set of clocks: Clock A=5:04 Clock B= 10:36 Time elapsed= 5 hours and 32 mins
3rd set of clocks: Clock A= 8:52 Clock B=2:35 Time elapsed= 5 hours and 43 mins
4th set of clocks: Clock A=8:43 Clock B= 2:14 Time elapsed= 5 hours and 31 mins
