3 roads, \( A , B , \) and \( C B \) is three times longer than \( A \) . \( C \) is twice as long as \( B \) . Draw the roads. What fraction of the total length of the roads is the length of \( A \) ? If Road \( B \) is \( 7 \) miles longer than Road \( A \) . what is the length of Road \( C \) ?
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