wu :: forums - Print Page


    
      
        wu :: forums
        (http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi)
      

        riddles >> medium >> Sum and Product..Hmm
        
(Message started by: Naumz on Dec 17^th, 2006, 6:03am)

Title: Sum and Product..Hmm
Post by Naumz on Dec 17^th, 2006, 6:03am

An interviewer invites two applicants to an interview. He thinks of a two digit number. To one applicant, he tells the sum of the 2 digits of the number. To the other, he tells the product. The two applicants then have the following conversation:

A: I don't know the numbers.
B: I don't know the numbers either, and I knew you wouldn't know them.
A: I now know the numbers.
B: I also now know the numbers.

How will you determine the two digit number or the individual digits?

Title: Re: Sum and Product..Hmm
Post by Barukh on Dec 17^th, 2006, 6:21am

Here (http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi?board=riddles_hard;action=display;num=1100930971).