Jawabanmu

2014-06-03T22:32:53+07:00
PTR = 1/2 . (POR + QOS) = 1/2 (60 + 40) = 50
2014-06-03T22:52:30+07:00
sdt PTR = 1/2 . (POR + QOS) =1/2 (60 + 40) = 50