Question

If a bus travels 20 km in 30 minutes. What is the average speed of the bus?

A.) 20km/h
B.) 30km/h
C.) 40km/h
D.) 50km/h

Answer 1

`d=20 \ km \\ t=30 \ min=0,5 \ h \\ \boxed{v-?} \\ \bold{Solving:} \\ \boxed{v= (d)/(t) } \\ v= (20 \ km)/(0,5 \ h) \\ \Rightarrow \boxed{v=40 \ km/h}`