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, 175 165 . , 170, 160, , 65% to 60%. : 0.65 x ((175 170) + (165 160)) / 2 = 3.25. : 0.6 x ((175 170) + (165 160)) / 2 = 3. ,, 170 + 3.25 = 173.5, 160 + 3 = 163. , 1.75 (: 0.35 x ((175 170) + (165 160) ) / 2) 2 (: 0.4 x ((175 170) + (165 160)) / 2). , ,.
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