Given the time that Doin and the friend meet and the time they spend eating lunch, the time they would finish eating lunch is 2 : 10 pm.
In order to determine the answer, the time the friends meet for lunch would be added to the time they finish eating lunch.
12 : 45 + 1 : 25 = 13 : 70 minutes
Remember that there are 60 minutes in an hour
So, the answer becomes 14 : 10 minutes = 2 : 10 pm
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