xmxmgsm

:onion31:

nick1314f

very hard question, what is the answer?

sings

15.......

chingjoopang

.........

leezhao2000

有頭緒,不過太複雜5.39.217.765 Q, ~7 p# u, u0 M' c; n
設共有X頭牛,9 O/ X5 N, z/ A5 c# Y4 I1 c
四個人共得X頭牛,就有以下等式:
' o7 J2 f" X1 C- x! D# B公仔箱論壇1 m  b" W6 y  N! K/ x0 E
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
" p/ T& E! T8 a) P( ]/ }( K9 l. m5.39.217.76由於太複雜,暫我時間去計,哈哈

leezhao2000

計到啦,X=15
4 k% W2 [9 e" R: D- l' X5.39.217.76

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