Jawabanmu

2014-08-25T19:36:43+07:00
2000 ml = 2 liter
9000:2 = 4500 detik
4500 detik = 1 jam 900 detik = 1 1/4 jam
1 1 1
2014-08-25T21:33:33+07:00
200ml=2liter
9000รท2=4500
4500=11/4
1 1 1