Knight

Knight passed 13 km long track in 26 minutes, what was his average speed?

Correct result:

v =  30 km/h

Solution:

x=13/(26/60)=60⋅13/26=30 km/hx = 13/(26/60) = 60 \cdot 13 / 26 = 30 \ \text{km/h}

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