xmxmgsm

:onion31:

nick1314f

very hard question, what is the answer?

sings

15.......

chingjoopang

.........

leezhao2000

有頭緒,不過太複雜
; w4 h& j: X8 Q7 L% t% G- P5.39.217.76設共有X頭牛,* S" G3 d" x+ g$ P! ^# q
四個人共得X頭牛,就有以下等式:: S9 a9 K0 H$ R0 \7 Y* g5 e8 ]& t1 ]9 `

' M  ^0 p+ M% H& C, ^) O  ]& _4 j' {x/2+0.5+(1-(x/2+0.5))/2+0.5+(1-(1-(x/2+0.5))/2+0.5)/2+0.5+(1-(1-(1-(x/2+0.5))/2+0.5))/2+0.5=x' M/ I# {* H/ W3 U% a; h) \/ A, ^3 a3 L
由於太複雜,暫我時間去計,哈哈

leezhao2000

計到啦,X=15
3 W9 ?6 s% q0 Q9 w4 f

r2069077

only 1??

酒后人生

:onion10: :onion10: :onion10:

jiun0204

frankiesdk

唔知道噢～～:onion03: :onion03:

noon91

想看答案。

2002224105

睇睇點分

ortatsun

thanks for share