1. 0,5 km/menit = ..... km/jam 2. 15 m/detik =........ km/jam 3. 40 cm/detik = ... m/menit 4. 2 cm/detik = ..... km/jam

1. o.5 /60 = 0.0083
2. 15000/3600 = 4.167
3. 4000/ 60 = 66.67
4. 200000/ 3600= 55.56

1.cara:0,5×60=30km/jam
2.15m÷1000=0,015km=0,015km×1/3600=0,015km×3600/1=54.000km/jam
3.40cm÷100=0,4=0,4m×1/60=0,4m×60/1=240m/menit
4.2cm÷100.000=0,00002km=0,00002÷1/3600=0,00002×3600/1=7200km/jam