Bunuel wrote:

Judy ran along the fence that surrounds her house. The fence forms a rectangle whose dimensions are 20×30 meters. Beginning from a vertex of the rectangle, Judy started running along one of the long sides, and stopped when she had completed running along 7 sides. This jog took her 30 seconds. What was Judy's speed in meters per second?

A. 2/3

B. 8/3

C. 23 1/3

D. 17/3

E. 6

The total distance covered will be -

\(2* 50 + 80 = v * 30\)

\(v = 6 m/sec\)

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