Math Arguments
180 Days of Ideas for Discussion in Math Class. (as of 9July2014, we're in overtime!)
Showing posts with label
Cryptography
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Showing posts with label
Cryptography
.
Show all posts
Monday, October 19, 2015
500: Secret Salary
My employer has nine workers. The nine of us want to determine what our average salary is, but none of us wants to divulge his own salary. Can we find the average without doing so?
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