, 04 2014 . 11:17
+
Lyudmila2807
: _
. ( , , ) 15 = 32 .
7,5 , 15 = 50 .
(, , , " ").
" ", " ( ) ( )"
, 32 50 . .. 18 "": 50-32.
50\18=2,7. 2,7 , , "" 2 3 . , "" 20 , 18-.
" " 25 , 2.
: ( 3), - , :
- ( 4) -, ,
- ( 5) , ,
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- , ,
- , " ". "" . ( 6).
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club.osinka.ru
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30 -
31 -
