i think that will be 4公仔箱論壇' L0 L @1 o H" T U
if you list all the number from 1 to 10
% U& v: c$ x" o% X1 o公仔箱論壇seperate them into 3 groupstvb now,tvbnow,bttvb4 X, F T f: c! v
from 1 to 4 has 2 numbers between them
$ V! }. L/ a# stvb now,tvbnow,bttvbfrom 4 to 7 has 2 numbers between them5.39.217.778 c& y3 R9 n; T, M. D3 ^/ ^0 t
from 7 to 10 has 2 numbers between them
9 I: S/ s8 W' Y( C3 V5.39.217.77so if you ask 1/3 of 10
" @ @/ E' j" z- _' |8 x/ hthat will be 4 |