document.write( "Question 502478: A runner travels 1.5 laps around a circular track in a time of 50s. the diameter of the track is 40m and its circumference is 126m.
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Algebra.Com's Answer #338859 by Gogonati(855)\"\" \"About 
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The average speed of the runner is:\"%28126%2A1.5%29%2F50=3.78%28m%2Fs%29\" \n" ); document.write( "
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