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????

OPTIONS:-

a) 2(p+q+r)

b) p+q+r

c) -(p+q+r)

d) pqr

Dear Student!

As per the information provided by you, I proceeded in the following manner.

But, the answer does not match with any of the option provided by you. Check the options in the question.

Cheers!

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