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rank ºÒ²É³ëµ¿ÀÚ 2020-08-08 (Åä) 22:54 Á¶È¸ : 622
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¿äûÀÚ°¡ ÀÚ½ÅÀÇ 1000Æ÷ÀÎÆ®¸¦ °É¾ú½À´Ï´Ù. ´äº¯ÀÌ Ã¤ÅõǸé 500Æ÷ÀÎÆ®¸¦ µå¸³´Ï´Ù.
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rankä¢ú­ 2020-08-08 (Åä) 23:44
Ç®ÀÌ´Â ´ÙÀ½°ú °°½À´Ï´Ù

                          1*(15-5)*(10*5)
1500 = -----------------------------------------
              0.7443*x + 0.1*8*x + 1*8*0.7443
              -------------------------------        <== ºÐ¸ð¸¦ ÅëÀÏÇϱâ À§ÇØ °¢Ç׿¡ 8*0.7443*x ¸¦ °öÇÔ
                        8 * 0.7443 * x

                1*(15-5)*(10*5) * 8*0.7443*x
1500 = ------------------------------------
              0.7443*x + 0.1*8*x + 1*8*0.7443

1500 * (0.7443*x + 0.1*8*x + 1*8*0.7443) = 1*(15-5)*(10*5) * 8*0.7443*x

1500*1*8*0.7443 = 1*(15-5)*(10*5) * 8*0.7443*x - 1500*0.7443*x - 1500*0.1*8*x

1500*1*8*0.7443 = ( 1*(15-5)*(10*5) * 8*0.7443 - 1500*0.7443 - 1500*0.1*8 ) * x

                          1500*1*8*0.7443
-------------------------------------------------------- = x
( 1*(15-5)*(10*5) * 8*0.7443 - 1500*0.7443 - 1500*0.1*8 )

13.517367 = x
rankdasari 2020-08-08 (Åä) 23:46
1500 = 10 * 10 * 5 / [ 1/8 + 0.1/0.7443 + 1/x ]
1/8 + 0.1/0.7443 + 1/x = 1/3
1/x = 1/3 - 1/8 - 0.1/0.7443 = 0.073978906
x = 13.51736669

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