Question

O masina a parcurs 30km in 20 minute.Ce distanta va parcurge in 50 de min. daca merge la fel de repede?

Answer 1

 30 km.........20min
x km................50min
50 x 30 = 1500
1500 : 20 = 75 km
Raspuns : 75 km

Answer 2

$30~km~...~20~min.\\ x~km~~...~50~min.$
$\frac{30}{x}= \frac{20}{50}\\ x= \frac{30*50}{20}\\ \boxed{x=\bold{75~km}}$