Answer : 4.8 florins can you exchange for your 4 guilders.
Solution : Given,
The current exchange rate for every 2.4 florins is 2.0 guilders
As per question,
The exchange rate is 2.0 guilders for every 2.4 florins
The exchange rate is 1 guilders for every florins
The exchange rate is 4 guilders for every florins
Therefore, the 4.8 florins can you exchange for your 4 guilders.