A Polar Bear Starts at the North Pole

Question 55
Multiple Choice

A polar bear starts at the North Pole.It travels 1.0 km south,then 1.0 km east,and then 1.0 km north to return to its starting point.This trip takes 45 min.What was the bear's average speed? A)0.00 km/h B)0.067 km/h C)4.0 km/h D)5.3 km/h