i think that will be 4& [1 I3 X5 w, I$ P
if you list all the number from 1 to 10tvb now,tvbnow,bttvb8 n, |2 m0 u& K. n# n& n
seperate them into 3 groups
) ]4 g0 A- A8 ]5 t7 L公仔箱論壇from 1 to 4 has 2 numbers between themtvb now,tvbnow,bttvb( ^* N2 b4 i7 M, E/ n5 Q4 e
from 4 to 7 has 2 numbers between themos.tvboxnow.com" j( e1 }& @4 n2 {: l) U% f
from 7 to 10 has 2 numbers between them3 M; c$ q% }- O Y' S
so if you ask 1/3 of 10% K# T* a+ C, \$ i
that will be 4 |