You’re in a pitch-black room with a clock that chimes the hour and also chimes once at each quarter hour. If you hear the clock chime once, what’s the longest you’ll have to wait to be sure what time it is?
You’re in a pitch-black room with a clock that chimes the hour and also chimes once at each quarter hour. If you hear the clock chime once, what’s the longest you’ll have to wait to be sure what time it is?