SOLUTION: car travels 1/3rd of the distance at a speed of 20kmh and balance distance at 60kmh, what is the average speed of the car
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Question 906350: car travels 1/3rd of the distance at a speed of 20kmh and balance distance at 60kmh, what is the average speed of the car
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
car travels 1/3rd of the distance at a speed of 20kmh and balance distance at 60kmh, what is the average speed of the car
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d = r*t
t = d/r
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t = (d/3)/20 + (2d/3)/60 = (5d/3)/60 = d/36
Avg speed = 36 km/hr
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