If the straight lines x - 2y=0 and kx + y=1 intersects at the point (1,1/2) then what is the value of k?

If the straight lines x - 2y = 0 and kx + y = 1 intersect at the point (1,(1)/(2)) , then what is the value of k ?

If the straight lines (x-1)/k=(y-2)/2=(z-3)/3 and (x-2)/3=(y-3)/k=(z-1)/2 intersect at a point, then the integer k is equal to

If the lines 2x+3y-1=0 and kx-y+4=0 intersect the coordinate axes in concyclic points then k-1=

If the straight line (4,3,5) and (x-4)/(1) = (y -2)/(1) = (z-k)/(2) intersect at a point, then the integer k is equal to

If the straight lines: (x-1)/k=(y-2)/2=(z-3)/3 and (x-2)/3 =(y-3)/k =(z-1)/2 intersect at a point, then the integer k is equal to :

If the straight lines : (x-1)/k=(y-2)/2=(z-3)/3 and (x-2)/3=(y-3)/k=(z-1)/2 intersect at a point, then the integer k is equal to: