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What time is it again? (Posted on 2005-06-19) Difficulty: 1 of 5
What time is it if the second hand is exactly on a second mark, and exactly 18 second marks ahead of the hour hand?

See The Solution Submitted by Erik O.    
Rating: 3.0000 (3 votes)

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Solution Generalised Solution | Comment 7 of 8 |
Following the same arguments, it can be proved that, in general, if the second hand is exactly (5A+B) second marks ahead of the hour hand where A=0,1,2,..........,11 and B= 0,1,2,3,4 then the current time is 12(5-B) minutes past (11-A) o'clock.
  Posted by K Sengupta on 2005-07-29 05:42:31
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