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Ramya gives a dinner party for 5 guests. The number of ways in which they may be selected from among 9 friends if two of the friends will not attend the party together is?

abhishek , 11 Years ago
Grade 11
anser 1 Answers
Amit Jain

Last Activity: 11 Years ago

2058_96662_Magical Mathematics_Permutations and Combinations_ 30 Oct 2013 1039AM_Abhishek.gif

 

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Amit Jain, 
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B.Tech., IIT Delhi

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