Jawabanmu

2014-08-11T19:58:48+07:00
K = 80 KM/JAM 
j: 120 KM
w: ?
120 : 80 =1.5 JAM = 90 MENIT
2014-08-11T19:59:05+07:00
DIk = V: 80 km/jam
         s= 120 km
Dit?..
Dijwb= t = S/V
         120 km / 80 km/jam
1.5 jam atau = 1.5 X 60 menit = 90 menit