If 2n + 1Pn - 1 : 2n - 1Pn = 3 : 5, then n is equal to ? – McqOptions

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1.	If ^{2n + 1}P_{n - 1} : ^{2n - 1}P_n = 3 : 5, then n is equal to ?
A.	4
B.	6
C.	3
D.	8
Answer» B. 6

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