Mathematics, 17.07.2019 11:30 RiddleMeThis

A, b, c and d are four points marked in order on a line such that ab : ac = 3 : 7 and bd : cd = 9 : 2. if cd is 100 cm long, find the length of ab.

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A, b, c and d are four points marked in order on a line such that ab : ac = 3 : 7 and bd : cd = 9...