200 cm/detik =.......................... km/jam

[tex] \frac{20}{ 100000} : \frac{1}{3600} = \frac{20}{100000} X \frac{3600}{1} = \frac{2}{100} X \frac{36}{1} = \frac{72}{100} = 0,72 km/jam X = kali.[/tex]Ketikkan jawabanmu di sini