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Math Challenge II-A Combinatorics Chapter 5 Practice Question 5.21 Part b)

 
 
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Re: Math Challenge II-A Combinatorics Chapter 5 Practice Question 5.21 Part b)
by John Lensmire - Monday, September 20, 2021, 10:39 AM
 

Hi Zeyin. The solution for the quiz has now been updated to make the final solution more clear. You are correct it is (29 choose 15) - 15. Thanks for letting us know!