Answered Questions

  • Probability

    4) There are 5 distinct pairs of white socks and 5 pairs of black socks in a cupboard. In the dark, how many socks do I have to pull out to ensure that I have at least 1 correct pair of white socks? a) 3 b) 11 c) 12 d) 16

    Vishal

    • Dec 8th, 2017

    A) 3

    sandeep

    • Oct 5th, 2017

    The answer is 11 5 white pairs =10 socks ,pick 5 from them which do not match with any other for worst case 5 black pairs =10 socks ,pick 5 from them which do not match with any other for worst case ...