yg bisa bntu tlg yah makasih

1. 2jam 40menit = 2,67 jam
v = s/t
v = 80/2,67
v = 29,96 km/jam
2. 1jam 15menit = 1,25 jam
v = s/t
v = 30/1.25
v = 24 km/jam
3. 40menit = 0,67 jam
v = s/t
v = 36/0,67
v = 53,73