?mohon bantuan,............

Orde P => [Q] sama (data 2 & 3)
(0,4/0,8)^n = (0,04/0,08)
<=> (1/2)^n = (1/2)
<=> n = 1

Orde Q => [P] sama (data 1 & 2)
(0,1/0,4)^m = (0,01/0,04)
<=> (1/4)^m = (1/4)
<=> m = 1
Persamaan lajunya:
v = k [P] [Q]

Semoga membantu