tolong ya pake caranya pliss

Volume balok besar = p x l x t
                                 = 12 x 8 x 10
                                 = 960 cm³

Volume kubus= S³ = 2³ = 8 cm³

banyaknya kubus = 960 / 8 = 120 kubus
sisa kubus = 120 - 48 = 72 kubus

sisa volume balok = 72 / 120 = 3/5 bagian

jawaban C