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Let P the point of intersection of the lines 1 2 z 5 4 y 1 2 x      and 2 3 z 3 2 y 2 3 x      . Then, the shortest distance of P from the line 4x = 2y = z is

1. 7 14 5
2. 7 14
3. 7 14 3
4. 7 14 6

Correct answer: 7 14 3

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