At a party I attended, some people shook hands. At the end, two people were surprised to find that they had both shaken the same number of hands. At a party that I gave, attended only by couples, some people shook hands. Upon enquiry, I discovered at the end that everyone else had shaken a different number of hands. How many hands did my spouse shake?
At a party I attended, some people shook hands. At the end, two people were surprised to find that they had both shaken the same number of hands. At a party that I gave, attended only by couples, some people shook hands. Upon enquiry, I discovered at the end that everyone else had shaken a different number of hands. How many hands did my spouse shake?
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section: Chapter Questions
Problem 4T: Over the past year, John has purchased 30 books. In how many ways can he pick four of these books...
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At a party I attended, some people shook hands. At the end, two people were surprised to find that they had both shaken the same number of hands. At a party that I gave, attended only by couples, some people shook hands. Upon enquiry, I discovered at the end that everyone else had shaken a different number of hands. How many hands did my spouse shake?
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