[Solved] Words of length 10 are formed using the letters A, B, C, D, E, F, G,H, I, J. Let 𝑥 be the number of such words where no letter is repeated; and let 𝑦 be the number of such words where exactly one letter is repeated twice and no other letter is repeated. Then, \\frac{y}{9x} = - - JEE (Advanced) 2017 Paper-1