If ` ""^(2n-1)P_(n): ""^(2n+1)P_(n-1)=22:7`, find n.

Explanation

Given,`P(2n−1,n):P(2n+1,n−1)=22:7`


=`(P(2n−1,n)​)/(P(2n+1,n−1))=22/7`​




=`((2n−1)!​)/((n−1)!)×((n+2)!)/((2n+1)!)​=22/7`


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