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If lines (x-3)/1=(y-[k])/2=(z-1)/1 and ...

If lines `(x-3)/1=(y-[k])/2=(z-1)/1` and `(x-1)/2=(y+1)/3=(z-1)/4` intersect (where [.] denotes greatest integer function) then `k` can be (1)`5` (2) `(13)/4` (3) `(19)/4` (4) `(15)/4`

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