Math Chapter Wise Sequences And Series (A.p., G.p., H.p.) English MCQ Rajasthan TGT 2016 Q.If a b m x y + = + = and b a n x y + = + =, then y x is equal to Ama nb na mb + Bma nb na mb − + C−ma nb/na mb Dma nb na mb + − Show answer Correct answer: −ma nb/na mb