Jawabanmu

2014-03-31T20:39:20+07:00
20.000=n/12.16/100.500.000
20.000=8000.000/1200.n
20.000=80.000/12.n
20.000.12/80.000=n
240.000/80.000=n
n=3 bln
2014-03-31T20:42:34+07:00
20.000/500.000 x 100% = 4%

1tahun = 16%
maka 4% / 16% x 12 bulan = 3 bulan