Select the correct answer
Mary starts from her house, walks 80 meters south, and stops to chat with her aunt on the sidewalk. After chatting for a few minutes, she walks
125 meters to the west to meet a friend and then walks 45 meters north with her friend to a cafe for lunch. Overall, she takes 10 minutes to do all
this. What is Mary's average speed?
O A 8 metersisecond
OB. 1.25 meters/second
C. 25 metersisecond
D. 4.5 metersisecond
OE. 0.42 meters/second
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