Question

Un autoturism parcurge 90 km in 60 min,in 50 min citi km parcurge?

Answer 1

90--------60
x -------- 50
x=50 * 90 : 60
x = 75 km
prin * am notat imultirea

Answer 2

90km .... 60 min
x ..... 50 min
90/x=50/60
x=$\frac{50}{60}$*$\frac{90}{1}$
x= $\frac{4500}{60}$
x=75km