SOLUTION: if a car takes 20 minutes to travel 15km how fast is the car going ?

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Question 324294: if a car takes 20 minutes to travel 15km how fast is the car going ?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
if a car takes 20 minutes to travel 15km how fast is the car going ?
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since distance is in km
time has to be changed to hours
20 minutes = 20/60 = 1/3 hours
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speed = distance / time
speed = 15 / (1/3)
speed = 15*3
= 45 km / hour
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