GAUSS8 2000 Problem 18

Past Contests GAUSS8 GAUSS (GR. 8) - 2000
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1

Jim drives 60\:km south, 40\:km west, 20\:km north, and 10\:km east. What is the distance from his starting point to his finishing point?

Answer Choices
A. 30\:km
B. 50\:km
C. 40\:km
D. 70\:km
E. 35\:km