Let S = {1, 2, 3,...9}. For k =1, 2,…5, let N_k be the number of subsets of S, each containing five elements out of which exactly k are odd. Then
N₁ + N₂ + N₃ + N₄ + N₅ =

Question

Let S = {1, 2, 3,...9}. For k =1, 2,…5, let N k be the number of subsets of S , each containing five elements out of which exactly k are odd. Then N 1 + N 2 + N 3 + N 4 + N 5 =

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Let S = {1, 2, 3,...9}. For k =1, 2,…5, let N k be the number of subsets of S , each containing five elements out of whi…

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