If\[^{n}{{P}_{4}}=30{{\,}^{n}}{{C}_{5}}\], then \[n=\] [MP PET 1995]

1.	If\[^{n}{{P}_{4}}=30{{\,}^{n}}{{C}_{5}}\], then \[n=\] [MP PET 1995]
A.	6
B.	7
C.	8
D.	9
Answer» D. 9

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If\[^{n}{{P}_{4}}=30{{\,}^{n}}{{C}_{5}}\], then \[n=\] [MP PET 1995]

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