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My clever father (Posted on 2005-06-24) Difficulty: 1 of 5
It is well known that a stopped clock gives the exact time twice a day, while a clock that gains or loses time may not be right more than once over a period of months.

My clever father adjusted his clock to give the correct time at least twice a day, while running at the normal rate.

Assuming he was not able to set it perfectly (a reasonable assumption) how did he do it?

See The Solution Submitted by pcbouhid    
Rating: 2.0000 (2 votes)

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Solution Puzzle Solution Comment 14 of 14 |

If the clock ran backwards at the same rate, then it is evident that the clock will show the correct time at least twice a day.

Consequently, the father altered the mechanisms of the clock in such a manner that it ran backwards.


  Posted by K Sengupta on 2007-03-30 10:15:55
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