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Yosi will be 13 years old (Posted on 2011-07-04) Difficulty: 4 of 5
Yosi Rosenblum was born in Tel Aviv about 10:30 PM on a date (mm.dd.yyyy) claiming maximal sum of digits.
On what date (mm.dd.yyyy) will he become Bar Mizvah?

No Solution Yet Submitted by Ady TZIDON    
Rating: 5.0000 (1 votes)

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Some Thoughts re(3): possible solution | Comment 8 of 11 |
(In reply to re(2): possible solution by Charlie)

 

You should  not be confused - I erred.

A day in Hebrew calendar is of no fixed  length and lasts from sunset to sunset.

To be on the safe side In regard of observing the holiness of Shabat,   Shabbat ends at nightfall, when three stars are visible,

 approximately 40 minutes after sunset

The month   lasts from one new moon till the next   new  moon.,  about 29 days 12 hrs 44 mnts.

A Hebrew calendar month  is 29n or 30 days long, and there are 7 leap years with  13 months (within a cyc le of 19 years

The leap[ years are 3rd, 6th,  8th,  11th,  14th,   17th and 19th  (Sloane A057349)

19 Jewish years  equal exactly to 19 Julian years.

The Metonic cycle is an approximate common multiple of the tropical year and the synodic month:

 

19 tropical years = 19*365.242 days = 6939,60 days.

235 synodic months = 235*29.53 days = 6939,55 days

 

So,Charlie,  on your 19th. 38th 57th, 76th and 95th birthdays the Hebrew  dates  were/will  be     exactly as on the day you were born


Steve Herman, It applies to you , too.

To err is human...Errare humanum est, perseverare diabolicum.


  Posted by Ady TZIDON on 2011-07-06 09:40:35
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