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Omni-MATH / Points A, B, C, and D lie along a line, in that order. If AB:AC=1:5, and BC:CD=2:1, what is the ratio AB:CD? · Discussion

Discussing Points A, B, C, and D lie along a line, in that order. If AB:AC=1:5, and BC:CD=2:1, what is the ratio AB:CD? · Omni-MATH

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