Jawabanmu

2014-04-02T16:44:46+07:00
V = 4 x 72 = 288 liter= 288000 cm^3

v = p x l x t
288000 = 80 x 60 x t
288000 = 4800 x t
t= 288000 : 4800 = 60
jadi tinggi = 60 cm
1 4 1
2014-04-02T17:01:42+07:00
Vbak = 72 * 4 = 288 l
p = 80 cm = 0,8 l
l = 60 cm = 0,6 l

jadi
V = P . l . t
288 = 0,8 . 0,6 . t
288 = 4,8t
t = 288/4,8 = 60 lt