SOLUTION: The distance between towns A to B is equal to 48 km. The road connecting A and B is not flat and consists of segments that go either uphill or downhill only. A cyclist rode his bik

Question 932994: The distance between towns A to B is equal to 48 km. The road connecting A and B is not flat and consists of segments that go either uphill or downhill only. A cyclist rode his bike from A to B and back in 3.5 hours. It is known that the cyclist was moving uphill at a speed 24 km/h. At what speed did the cyclist move downhill?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = downhill speed
y = uphill speed = 24 kph
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s = d/t
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1/24 + 1/x = 3.5/48
1/x = 3.5/48 - 1/24
x = 1/(3.5/48 - 1/24)
x = 32
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answer:
x = downhill speed = 32 kph
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