Question

Find the value of n: N power of P. = 10x (n-1) power of P3​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

n(n-1)!/(n-4)! =n-1!/(n-3) (n-4)!×10

n(n-3) =10

n(n-3) =5×2

n=5