Respuesta :
we know that speed= distance/ time,
or
v=d/t
the speed, v= 225 km/2.5 h= 90 km/h
the train has an average speed of 90 km/h
or
v=d/t
the speed, v= 225 km/2.5 h= 90 km/h
the train has an average speed of 90 km/h