1.4,5 jam 8 menit.....sekon 2.108km/jam..........m/s 3.200g/cm3.......kg/m3 4.15 inchi.....m

1. 4,5 jam 8 menit
= (4,5 x 3600) + (8x60)
= 16.200 + 480 = 16.680 sekon

2. 108km/jam = 108x1000/3.600 = 30 m/s

3. 200g/cm³ = 200:1000/1:1.000.000
= 200/1000 x 1.000.000/1
= 200.000 kg/m³

4. 15 inchi = 15x2,54/100 = 38,1 cm = 0,381 meter