Answer:
<em>The train arrives in Travemunde on Wednesday at 22:15.</em>
Step-by-step explanation:
<u>Time Handling</u>
The ferry from Helsinki to Travemunde leaves Helsinki at 17:30 on Tuesday.
The journey takes 28 hours and 45 minutes. We will calculate the day and time that the train arrives in Travemunde.
From the 28 hours and 45 minutes, we'll subtract 24 hours and now we are on Wednesday at 17:30. The train still has 28 - 24 = 4 hours and 45 minutes to go.
We add 4 hours to 17:30 to get 21:30. The train still has 45 more minutes to arrive. Now we add 30 minutes and we're at 21:30 +00:30 = 22:00 and the train has still 45-30=15 minutes to arrive in Travemunde. Adding the 15 remaining minutes to 22:00 we get the final time of 22:15.
The train arrives in Travemunde on Wednesday at 22:15.