# SOLUTION: Kathy bicycles 4 km/h faster than Praedup. In the same time it takes Praedup to bicycle 45 km, Kathy can bicycle 50 km. How fast does each bicyclist travel?

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 Question 412126: Kathy bicycles 4 km/h faster than Praedup. In the same time it takes Praedup to bicycle 45 km, Kathy can bicycle 50 km. How fast does each bicyclist travel?Answer by josmiceli(9817)   (Show Source): You can put this solution on YOUR website!Write 1 equation for kathy, and 1 equation for Praedup Let = praedup's speed given: K: (1) P: (2) ---------------- (1) and, by substitution: --------- (1) and Kathy's speed is 40 km/hr Praedup's speed is 36 km/hr