SOLUTION: Points A, B, C, and D are arranged in order on a line so that AB = 3BC and BC = 2CD. What fraction of AD is BD?

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Question 108188: Points A, B, C, and D are arranged in order on a line so that AB = 3BC and BC = 2CD. What fraction of AD is BD?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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Points A, B, C, and D are arranged in order on a line so that AB = 3BC and BC = 2CD. What fraction of AD is BD?
:
Draw it Let CD = 1:
:
A--------------6---------------B------2------C---1---D
:
BD%2FAD = 3%2F9 = 1%2F3