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Functions question

2017 · Shift 2 · Q23
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  5. /2017 · Shift 2 · Q23

Functions question

2017 · Shift 2 · Q23

JEE AdvancedMathematicsFunctionsMCQ+3 / −1
Let S = {1, 2, 3, .........., 9}. For k = 1, 2, .........., 5, let Nk be the number of subsets of S, each containing five elements out of which exactly k are odd. Then N1 + N2 + N3 + N4 + N5 =
  1. A
    210
  2. B
    252
  3. C
    126
  4. D
    125
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