One night I woke up and noticed that my clock read 1:59.   I couldn't get back to sleep and the next time I looked at the clock, it read 3:15. How much time had elapsed?

Please send your answer as a range of times in the following format: H:MM:SS - H:MM:SS.   Please note that my clock only displays hours and minutes, not seconds, so 3:15 could have been anywhere from 3:15:00 to 3:15:59.






Solution to the Problem:

The elapsed time could have been anywhere from 1:15:01 to 1:16:59.

When my clock read 1:59, it could have been anywhere between 1:59:00 to 1:59:59.   Likewise, when the clock read 3:15, it could have been anywhere from 3:15:00 to 3:15:59.   The shortest elapsed time would be from 1:59:59 to 3:15:00, and the longest elapsed time would have been from 1:59:00 to 3:15:59.


Correctly solved by:

1. James Alarie Flint, Michigan
2. Mishan Kasiparsad Johannesburg, South Africa
3. Sascha Moline Calgary, Alberta, Canada
4. William Vargo Calgary, Alberta, Canada