Latest IIT-JEE Aptitude Question SOLUTION: If the equations x^2 + 2x + 3 = 0 and ax^2 + bx + c = 0, a, b, c ∈ R, have a common root, then a : b : c is - (1) 1 : 3 : 2 (2) 3 : 1 : 2 (3) 1 : 2 : 3 (4) 3 : 2 : 1