Please jawab pake cara ya....

waktu = 07.50 - 06.30 = 1.20 = 1 1/3  jam = 1,33 jam
jarak = 45 km

kecptn = jarak / waktu 
            = 45 : 4/3
             = 45 x 3/4
              =33,75 km /jam

jawab.A.33,75 km/jam