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Gain or Loss (Posted on 2003-07-05) Difficulty: 3 of 5
The minute and the hour hand of a watch meet every 65 minutes.

How much time does the watch lose or gain ?

See The Solution Submitted by Ravi Raja    
Rating: 3.1667 (6 votes)

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re: Another Question! | Comment 4 of 7 |
(In reply to Another Question! by mathemagician)

The hands move at 144/143 times as fast as a perfectly accurate watch, so after 143 12-hour periods the watch will have traveled through 144 12-hour cycles. After 72.5 days this will take place, or the midnight at the end of September 10, beginning of September 11.
  Posted by Charlie on 2003-07-05 13:29:34

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