Brain Teasers
Room Lit by Clock
A room is lit only by an LED digital 12-hour clock. At what time is the room the brightest? The darkest?
Assume no leading '0' in times where the hour is a single digit. In other words, the time is displayed as "6:32", not "06:32".
Assume no leading '0' in times where the hour is a single digit. In other words, the time is displayed as "6:32", not "06:32".
Hint
The digit zero lights six segments, while the digit two lights only five. Therefore, "12" is darker than "10".Answer
Brightest: 10:08 (am or pm)Darkest: 1:11 (am or pm)
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