Mathematics
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    (30/115)*1+(25/115)*0.95+(65/115)*0.9=
    sqrt0.98
    30/115*1+25/115*0.95+65/115*0.9=
    0.9×360×1963×(728-83/2)+360×3436×(615-83/2)+360×1963×(83/2-25)
    1.2(75/1470)+1.4(200/1470)+3.3(150/1470)+0.6(1270/650)+1(1250/1470)=
    0.9×360×1963×(728-83/2)+360×4418×(615-83/2)+360×1963×(83/2-25)
    0.9×360×1963×(728-83/2)+360×2945×(615-83/2)+360×1963×(83/2-25)
    0.9×360×1963×(728-83/2)+360×4418×(615-83/2)
    0.9×360×1963×(640-83/2)+360×4418×(615-83/2)
    0.9×360×1963×(640-175/2)+360×3436×(615-175/2)
    0.9×360×1963×(640-175/2)+360×3436×(615-175/2)+360×1963×(175/2-25)
    0.9×360×1963×(765-175/2)+360×4418×(615-175/2)
    1-99.2%/99.4%
    (105.25/1.03500+(99.461+5.25)/1.03500)/2
    (105.25/1.04074+(99.732+5.25)/1.04074)/2
    (105.25/1.0525+(99.732+5.25)/1.0525)/2
    105.25/1.04530
    105.25/1.06757
    ((99.022+4.5)/1.04976+(97.886+4.5)/1.04976)/2
    104.5/1.06757

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