tolong jawab yg bener ya dan isi caranya

jarak = 160 km
kecptn =60 km/jam
waktu = jrk/kcptn
          =160/60
          =16/6
          = 2 4/6
          =2 2/3 jam
           = 2jam 40 menit
jam brkt =05.20
jam tiba = 05.20+02.40 = 08.00
jawab.B