contestada

5. A car travels 40 kilometers at an average speed of 80 km/h and then travels 40
kilometers at an average speed of 40 km/h. The average speed of the car for this 80 km

trip is:
A) 40 km/h
B) 45 km/h
48 km/h
D) 53 km/h
E) 80 km/h

Respuesta :

nganhang11012006

Answer:

D

Step-by-step explanation:

Total distance traveled is 80KM.

Total time taken is 1.5 hrs(0.5+1)

Average Speed = 80/1.5

=53, 3