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mulai lari = 05.40
selesai = 06.20
t = 06.20 - 05.40 = 40 menit = 0,667jm
s = 3 m
maka :
v = s/t
= 3/0,667
= 4,49 km/jam
= 4,5 km/jam
= 3 km : ( 6.20 - 5.40 )
= 3 km : 40 menit
= 3 : 0,667 jam
= 4,5 km/jam