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28 Jun 2022, 14:45
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15%
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Gill drives 120 miles from Los Angeles to San Diego to fetch a package. On her way there she drives at 40 miles per hour. On her way back she drives 50% faster. What is Gill's average velocity for the round trip?
A. 24 miles per hour
B. 48 miles per hour
C. 50 miles per hour
D. 53 1/3 miles per hour
E. 68 miles per hour
A. 24 miles per hour
B. 48 miles per hour
C. 50 miles per hour
D. 53 1/3 miles per hour
E. 68 miles per hour
28 Jun 2022, 15:09
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Average speed is not the arithmetic mean of the speeds
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