i think that will be 4. f; c) |) y2 l# I" I4 T; A
if you list all the number from 1 to 10公仔箱論壇- T% S6 t0 P/ k) A3 q9 h9 }! `
seperate them into 3 groups2 g/ K' \5 f, v' [/ Z
from 1 to 4 has 2 numbers between them% w# \) i( i% r9 {. |
from 4 to 7 has 2 numbers between them
% e: W3 l3 | i P4 Tfrom 7 to 10 has 2 numbers between them
/ D( J2 Q- |5 `. Vtvb now,tvbnow,bttvbso if you ask 1/3 of 10
3 x0 }) l/ L; A, a$ s8 q* S/ dthat will be 4 |