Respuesta :

Data

distance = 40 km

time = 120 min

speed = ?

1.- Convert time into hours

1 hour = 60 min

x = 120 min

x = (120 x 1) / 60

x = 120/60

x = 2 hours

2.- Calculate speed

speed = distance / time

speed = 40 km / 2

speed = 20 km/h