Solve permutations 5p3= np4

1.	Solve permutations 5p3= np4
Answer» 5!/(5-3)!= n!/(n-4)!5!/2!=n×(n-1)(n-2)(n-3)(n-4)!/(n-4)!5×4×3×2!/2!= n(n-1)(n-2)(n-3) {(n-4) and 2! Is cut with same digit)}60 = n(n-1)(n-2)(n-3) ise solve karo answer aa jayga

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