1.

A motor vehicle travelled the first one third of a dis†an ce s at a speed of 10km/h, next one third at a speed of 20km/h and the last one third at a speed of 60km/h. Determine the mean speed of the vehicle over the entire dis†an ce s

Answer» A motor vehicle travelled the first one third of a dis†an ce s at a speed of 10km/h, next one third at a speed of 20km/h and the last one third at a speed of 60km/h. Determine the mean speed of the vehicle over the entire dis†an ce s


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