So nho nhat co 2 chu so = 10
Vay: So be = 1/10 so lon
Ta co so do:
So be: |----------|
So lon: |----------|----------|----------|----------|----------|----------|----------|----------|----------|----------|
So be la:
55 : ( 1 + 10 ) x 1 = 5
So lon la:
55 - 5 = 50
D/s: ...