Answer:
The train left at 5:26 pm.
Explanation:
30 minutes after 4:39 pm will be 5:09 pm.
17 minutes after 5:09 pm will be 5:26 pm.
5:26 pm
4:39 pm + 0:47 = 4:86 pm
1 hour = 60 minutes
86 minutes = 60 minutes + 26 minutes = 1 h 26 min
4:86 pm = 5:26 pm
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