Jawabanmu

2014-02-21T19:14:29+07:00
300/6 = 50km/jam
250 km : 50km/jam = 5 jam
2014-02-21T19:14:30+07:00
300 km = 6 jam
Kecepatan = 300/6 = 50 km/h
Maka 250 km = 50 km/h
           250/50 = 5 jam