A Honda takes ten minutes to go from milepost 71 to milepost 81. A Toyota takes fifteen minutes to go from milepost 65 to milepost 80. Which car has the greatest average speed?

The Honda

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The Toyota

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The average speeds are the same

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Solution

The correct option is C. The average speeds are the same
Average speed = total distance / total time
Honda, $V_{a v} = \frac{81 - 71}{10} = 1 m i l e / min$
Toyota, $V_{a v} = \frac{80 - 65}{15} = 1 m i l e / min$
Hence, both have equal average speed.

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A Honda takes ten minutes to go from milepost 71 to milepost 81. A Toyota takes fifteen minutes to go from milepost 65 to milepost 80. Which car has the greatest average speed?

The correct option is C. The average speeds are the sameAverage speed = total distance / total timeHonda, Vav=81−7110=1mile/min Toyota, Vav=80−6515=1mile/min Hence, both have equal average speed.

The correct option is C. The average speeds are the same
Average speed = total distance / total time
Honda, $V_{a v} = \frac{81 - 71}{10} = 1 m i l e / min$
Toyota, $V_{a v} = \frac{80 - 65}{15} = 1 m i l e / min$
Hence, both have equal average speed.