Question: How many rooms does the hotel where the fight between Floyd Mayweather Jr. and Marcos Maidana was held have?
Sentence (from "Floyd Mayweather Jr. vs. Marcos Maidana"): The bout was held on May 3, 2014, in the MGM Grand Garden Arena, at the MGM Grand Hotel & Casino in Las Vegas, Nevada, United States, on Showtime PPV.
Relevant evidence: Yes