Tina's swimming lesson started at 5:30 P.M. and ended at 6:25 P.M. How long did the swimming lesson last?

Answer 1

6:00 P.M = 5:30 P.M + 30 min

6:25 P.M = = 6:00 P.M + 25 min

30 min + 25 min = 55 min