If Dina started swimming at 3 38 and she swam until 4 15 p.m, the total time she spent swimming is 1 hour 23 minutes.
The total time she spent swimming can be determined by subtracting the time she started swimming from the time she started swimming.
Total time = end time - start time
4: 15 - 3:38 = 1 hour 23 minutes
To learn more about how to calculate time, please check: https://brainly.com/question/26290873
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