As given, the average speed of the motorist is 63 km/h.
To find if this is also the median and the mode, we need more information about the distribution of speeds.
If we assume that the motorist drove 80km continuously at a constant speed of 63km/h, then the average speed would be 63 km/h, the median speed would be 63 km/h (as there is only one value), and the mode would also be 63 km/h (as it is the most frequently occurring value).
Therefore, if the driver maintained a constant speed of 63 km/h throughout the journey, then 63 km/h is the average, median, and mode speed.
A motorist drives 80km at an average speed of 63km/h which is median and mode
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