Probability related Questions by Balaji

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    BalajiSenior Member
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    08-08-2014, 11:30 PM Düzenlendi #1
    N is a three digit no  that is multiple of 7 what is the prob that it will be multiple of 5


    a) 1/5


    b) 11/54


    c) 13/64


    d) 13/66










    answer choice c







    solution







    there are 26 such numbers so







    probability = 26/128



    =13/64

     

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    Probability related Questions by Balaji - by Balaji - 08-08-2014, 11:30 PM