folosim regula de 3 simpla
5 ore .................................................300 km
7 ore ...................................................x
x=[tex] \frac{300x7}{5} =420[/tex]km
sau ca o a doua varianta :
daca parcurge 300 de km in 5 ore , =>
intr-o ora parcurge 300:5=60 km
Asadar , in 7 ore parcurge 60x7=420 km
Cu intrebari :
1) cati km parcurge intr-o ora ??
300:5=60 km
2) cati km parcurge in 7 ore ??
7x60=420 km
Raspuns: 420 km
