Ahigh-speed train travels 480 km from paris to grenoble, france, at an average speed of 180 km/h. how long will it take to reach grenoble?

a. 0.66 h
b. 3.8 h
c. 0.38 h
d. 2.7 h

The time (t) it will take for the train to reach to Grenoble is the quotient when the distance (d) is divided by the speed (s). That is,
                                       t = d / s
Substituting the known values,
                                       t = 480 km / 180 km/h
                                      t = 2.667 h
Thus, it will take approximately 2.7 h to reach Grenoble. The answer is letter D. 

Iam looking for this answer too!

B) as the temperature increases, the kinetic energy of the particles increases.|-/