How many RAF planes were left at the end of the battle of Athens?

In the context of Roald Dahl's "Going Solo," the correct answer is that 7 RAF planes were left at the end of the battle in Athens. This number is significant as it highlights the intensity and challenges faced by the RAF during the battle. The remaining planes underscore the toll that the conflict had on the squadron and provide insight into the high-risk environment in which Dahl and his fellow pilots operated. Understanding this number helps to illustrate the broader challenges of wartime operations and the bravery required of those involved, which is a recurring theme in Dahl's narratives about his experiences in the air force.