Multiple Choice Questions on Let A 1 2 3 4 5 6 7 8 9 10 Then the number of subsets of A containing two or three elements is ........ for NDA Exam Preparation

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Multiple Choice Questions

Let A 1 2 3 4 5 6 7 8 9 10 Then the number of subsets of A containing two or three elements is ........

Mathematics (NDA) Set theory
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    Let A={1,2,3,4,5,6,7,8,9,10}. Then the number of subsets of A containing two or three elements is

    45

    Incorrect Answer

    120

    Incorrect Answer

    ?165

    Correct Answer

    330

    Incorrect Answer
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    Explanation:

    Required no. of subsects
    = 10 C 2 + 10 C 3 = 45 + 120 = 165

    By: Munesh Kumari
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