Answer:
D-20
Explanation:
d. 20
The given question implies 5 permutation 2, i.e .
But,
=
So that for , n = 5 and r = 2.
Cancel out 3 and 2 with respect to the numerator and denominator.
= 5 * 4
= 20
Therefore,
So that the correct option is D.
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