Let S = \1, 2, 3, …, 9\. For k = 1, 2, …, 5, let N_k be the… — JEE Main 2017 Mathematics PYQ

JEE Main 2017

Let

S = \{1, 2, 3, \ldots, 9\}

. For

k = 1, 2, \ldots, 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 =

Show answer

Correct option: C

[JEE Main 2017]

Practise Permutations and Combinations the way it is asked

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JEE Main 2017 Mathematics question on Permutations and Combinations