Jawabanmu

2014-06-02T18:40:10+07:00
Volume balok = pxlxt
= 100 x 80 x 80
= 640000

volume kubus = 40 x 40 x 40
= 64000

volume air tumpah = volume kubus = 64.000
sisa air di balok = volume balok - volume kubus
640000 - 64000
= 576000

perbandingan = 64000 : 576000
1 : 9