Question

Un automobil parcurge o distanta de 60km/h in 4 ore. In cat timp parcurge distanta mergand cu 80km/h?

Answer 1

$viteza=\frac{distanta}{timp}$ sau $v=\frac{d}{t}$
In cazul tau: $60=\frac{d}{4}\Rightarrow d=60*4=240km$
Atunci, daca trebuie sa aflam un nou timp t2 avem:
$t2=\frac{d}{v2}=\frac{240}{80}=3 ore$