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Q:what is the number of arrangements of the word banana such that both the n's doesn't come in an adjacent manner

pranay -askiitians expert , 14 Years ago
Grade 12
anser 1 Answers
AKASH GOYAL AskiitiansExpert-IITD

Last Activity: 14 Years ago

Dear Pranay

total perms = 6!/(3!)(2!)
perms where 2 N's are together (take them as one unit) = 5!/(3!)
perms where two N's are not together = 6!/(3!)(2!) - 5!/(3!) = 40.

All the best.

AKASH GOYAL

AskiitiansExpert-IITD

 

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