Q: What is FC Rapid București?

A: FC Rapid București is a Romanian association football club from Bucharest, Romania.

Q: Who founded FC Rapid București?

A: FC Rapid București was founded in 1923 by a group of workers.

Q: How many times has Rapid won the Romanian championship?

A: Rapid has won the Romanian championship three times, in 1967, 1999, and 2003.

Q: How many times has Rapid won the Romanian Cup?

A: Rapid has won the Romanian Cup 13 times.

Q: What happened to Rapid in the 2015-16 season?

A: In the 2015-16 season, Rapid was promoted to Liga I.

Q: Where is FC Rapid București located?

A: FC Rapid București is located in Bucharest, Romania.

Q: Who founded Rapid București and why?

A: Rapid București was founded in 1923 by a group of workers. The reason for founding the club is not provided in the given text.