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What is the velocity (speed) of a car (in kilometres per hour) if it goes 40 kilometres in 35 minutes?

A: 70.27 km/hr
B: 67.52 km/hr
C: 68.57 km/hour
D: 69.88 km/hr


Sagot :

speed = distance / time


35 minutes / 60 minutes = 0.583 hours


speed = 49 km / 0.583 hours

Speed = 68.57 km/hr


answer: C. 68.57 km/hour