Solve: If x/y = 1/3, then x2+y2/x2-y2 =? A) 910 B) 5/4 C) 1 D) None of these Related MCQs: Synonym of ‘sabotage’ (شرارت انگیزی) is? Urdu was declared the national language of Pakistan in? The current through a conductor between two points is directly proportional to the voltage across the two points, is known as? The ozone gas?