Car Travels a Distance Of $100 \mathrm{~km}$ In 200 Hours $60.0 \mathrm{~km}$

car travels a distance of $100 \mathrm{~km}$ in 2.00 hours. It then travels an additional distance of $60.0 \mathrm{~km}$ in 1.00 hour. The average speed of the car for the entire trip is

A) $50.0 \mathrm{~km} / \mathrm{hr}$ .
B) $46.7 \mathrm{~km} / \mathrm{hr}$ .
C) $80.0 \mathrm{~km} / \mathrm{hr}$ .
D) $60.0 \mathrm{~km} / \mathrm{hr}$ .
E) $53.3 \mathrm{~km} / \mathrm{hr}$ .