I want to know the answer to the following question:
How many miles of highways are in Nanjing?
All the background I'm provided with is that "Inside the city of Nanjing, there are 230 km (140 mi) of highways, with a highway coverage density of 3.38 kilometres per hundred square kilometrs (5.44 mi/100 sq mi).". Is that enough to answer the question?
Answer: yes