Renée,
Julie and Gisèle have a room at Bally's, Ceasar's Palace and
Mandalay Bay in Las Vegas.
They sleep in room
number 205, 319 and 438.
Hints
: - The Mandalay Bay client leaves her room, 319,
to go to the casino.
- One hour later, she meets Julie who is staying at Bally's.
- During this time, Gisèle is watching television in her
room, 438.
Question
: What is the hotel and room number of each woman?
