Average speed of the car
A car travels 40 kilometers at an average speed of 80 km/hr and then travels 40 kilometers at an average speed of 40 km/hr. the average speed of the car for this 80 km trip is:
a. 48 km/hr
b. 60 km/hr
c. 53 km/hr
d. 40 km/hr
e. 45 km/hr
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