The sum of all the values of p for which the lines `x+y-1=0, px+4y+2=0` and `4x+py+7=0` are concurrent is euqal to

The number of values of p for which the lines x+ y - 1 = 0, px + 2y + 1 = 0 and 4x + 2py + 7 = 0 are concurrent is equal to

The number of values of p for which the lines x+y-1=0 , px+2y+1=0 and 4x+2py+7=0 are concurrent is equal to

The number of values of p for which the lines x+ y - 1 = 0, px + 2y + 1 = 0 and 4x + 2py + 7 = 0 are concurrent is equal to

The value of k for which the lines 7x -8y +5=0, 3x-4 y+5 =0 and 4x+5y+k =0 are concurrent is given by

The value of k for which the lines 7x -8y +5=0, 3x-4 y+5 =0 and 4x+5y+k =0 are concurrent is given by

The number of real values of k for which the lines x-2y+3=0,kx+3y+1=0 and 4x-ky+2=0 are concurrent is:

Find the value of a for which the straight lines x+y-4=0,3x+2=0 and x-y+3a=0 are concurrent.

Find the value of m for which the lines 4x -3y - 1 = 0, 3x - 4y + 1 = 0 and mx - 7y + 3 = 0 are concurrent.

Find the value of p, so that three lines 3x + y = 2, px + 2y-3=0 and 2x-y=3 are concurrent.