If the equation 2x2 + 2(c – 20) x + (c – 20) = 0 has equal roots then, the value of c is
20
22, 24
20, 22
If -3 is a root of both the Quadratic equations 2x2 + px - 15 = 0, and p(x2 + x) + q = 0, then the value of q if the equation containing it has equal roots is.