S898461 S898461

23-10-2020
Mathematics

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The points C, D, E and F all lie on the same line segment, in that order, such that the ratio of CD:DE:EFCD:DE:EF is equal to 3:2:1.3:2:1. If CF=42,CF=42, find DF.DF.

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beyoncejames beyoncejames

23-10-2020

Answer: 6

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