[" If every pair from among the equations "],[x^(2)+ax+bc=0,x^(2)+bx+ca=0" and "],[x^(2)+cx+ab=0" has common root,then the "],[" sum of three common roots is "]

If every pair from among the equations x^(2)+ax+bc = 0, x^(2)+bx+ ca = 0, x^(2)+cx+ab = 0 has a common root, then the sum of the three common roots is

If every pair from among the equations x^(2)+ax+bc = 0, x^(2)+bx+ ca = 0, x^(2)+cx+ab = 0 has a common root, then the sum of the three common roots is

If every pair from among the equations x^(2)+px+qr=0,x^(2)+qx+rp=0 and x^(2)+rx+pq=0 has a common root,then the sum of the three common roots is

If every pair from among the equations x^(2)+px+qr=0,x^(2)+qx+rp=0 and x^(2)+rx+pq=0 has a common root then the product of three common root is

If every pair from among the equations x^(2)+px+qr=0,x^(2)+qx+rp=0 and x^(2)+rx+pq=0 has a common root then the product of three common root is

If every pair from among the equations x^2 + px + qr = 0, x^2 + qx +rp = 0 and x^2+rx +pq = 0 has a common root then the product of three common root is

If every pair of equations x^(2)+ax+bc=0,x^(2)+bx+ca=0 and x^(2)+cx+ab=0 has a common root then their sum is

If every pair from among the equations x^(2)+px+qr=0,x^(2)+qx+rp=0 and x^(2)+rx+pq=0 has a common root then the product of three common root is (A) pqr (B) 2 pqr (C) p^(2)q^(2)r^(2)(D) none of these