0 17
« » , 1 8 , – , . . , 1 8 ,
25% 50% 75% -
10% 125% 75% 90% - .
3% 10% 90% 97% - .
3% 97% - , .
, , :
+ / 2 =
: –5 . =
: +5 . =
: 162 ., 178 . 175 . (162+178/2= 170; 170+5= 175)
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