Respuesta :

other way to under stand is 7.8 x 10^5 M/hr, 
1 KM = 10^3 m 
so 7.8 x 10^5 m/h = 7.8 x 10^2 km/hr 
now there are 24 hours in a day 
so 780/24 = 32.5 km/day