Question

if nP3 : nP2 =3:1 than n is equal to this is a question of PERMUTATIONS ​

Answer 1

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Step-by-step explanation:

ANSWER ::

nP3 : nP2 =3:1

[ n! / (n-3)! ] / [ n! / (n-2)! ] = 3/1

(n-2)! / (n-3)! = 3

n - 2 = 3

n = 5