Double DigitsProbability puzzles require you to weigh all the possibilities and pick the most likely outcome.
As an inveterate clock watcher, James glances at his digital watch at random from time to time throughout the day. What is the probability that he will see all the digits reading the same (for example, 4:44) during any single glance? (Assume a typical day, not a day on which daylight savings time changes or anything like that. The watch is set to a 12 hour U.S. format, not a 24 hour European or military format.)
HintHow many times does the given occurrence happen in a day? How long do these occurrences last? How long is this compared to a day?Hide What Next?
Tweet
See another brain teaser just like this one... Or, just get a random brain teaser If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own. Back to Top |


