Mrs. Julian left her home at 05 15 to a nearby park for some morning exercise. She left her house and took a 29 min walk to the park. She stayed at the park for some time and took the same route back. She reached home at 07 07. Given that she took the same time to walk home from the park, how long did Mrs. Julian exercise at the park last?
From 05 15 to 06 00 = 45 min
From 06 00 to 07 07 = 1 h 7 min

Total time taken
= 45 min + 1 h 7 min 
= 1 h 52 min 

1 h = 60 min

Time that Mrs. Julian spent to walk to the park and back home
= 2 x 29 
= 58 min

Time that Mrs. Julian spent to exercise in the park
= 1 h 52 min - 58 min
= 112 min - 58 min
= 54 min

Answer(s): 54 min