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A bike covers one-half of its journey with speed X, next one-fourth with speed 10 m/s and last one-fourth with speed 20 m/s. The average speed of the bike during the entire journey is 5 m/s, then the value of X is approximately

Answer» A bike covers one-half of its journey with speed X, next one-fourth with speed 10 m/s and last one-fourth with speed 20 m/s. The average speed of the bike during the entire journey is 5 m/s, then the value of X is approximately


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