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If alpha, beta are the roots of the equa...

If `alpha, beta` are the roots of the equation `x^2 + px - r = 0` and `alpha/3,3beta` are the roots of the equation `x^2 +qx-r=0,` then `r` equals `(i) (3/8)(p-3q)(3p+q)` `(ii) (3/8)(3p-q)(p+3q)` `(iii) (3/64)(3p-q)(p-3q)` `(iv) (3/64)(p-q)(3q-p)`

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