A seminar starts at 13:20 and lasts 3 hours 50 minutes. At what time does it finish?

Answer and explanation

Correct answer: A. 17:10

  1. Step 1: Add the hours: 13:20 + 3 h = 16:20.
  2. Step 2: Add the minutes: 16:20 + 50 min = 17:10.
Answer
17:10.
Why not the others: 18:10: an hour is added by mistake. 19:10: it treats an hour as 100 minutes.

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