Sure, I can help you with that. Here are the approximate costs of each mode of transportation from Hamburg to Berlin:

* **Train:** A one-way ticket on the fastest train from Hamburg to Berlin costs around €40. If you bring a folding bike, you can take it for free.
* **Flight:** A one-way flight from Hamburg to Berlin costs around €50-€100, depending on the time of year and the airline.
* **Car:** The fuel cost for driving from Hamburg to Berlin is around €50-€60, assuming you have an average fuel consumption of 6 liters per 100 kilometers. You will also need to pay for tolls, which cost around €20.
* **Bicycle:** The cost of cycling from Hamburg to Berlin is free, but you will need to pay for food, accommodation, and other expenses.

Please note that these are just approximate costs and the actual cost may vary depending on factors such as the time of year, the specific route you take, and your individual needs.

Here is a table summarizing the travel times and costs of each mode of transportation:

| Mode of transportation | Travel time | Cost |
|---|---|---|
| Train | 1 hour and 40 minutes | €40 |
| Flight | 1 hour | €50-€100 |
| Car | 3.5 to 4 hours | €50-€60 + €20 tolls |
| Bicycle | several days | free |

I hope this helps!
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