*해설

<문제 해설>
8진수(0,1,2,3,4,5,6,7,10,11)8 = 16진수(0,1,2,3,4,5,6,7,8,9)16
8진수(12,13,14,15,16,17,20)8 = 16진수(A{S},B{T},C{U},D{V},E{W},F{X},10)16
8진수(20)8 = 16진수(10)16,8진수(40)8 = 16진수(20)16,8진수(60)8 = 16진수(30)16
8진수(67)8 = 16진수(37)16