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JEE MATHEMATICS MCQ: COMBINATIONS

1 Easy

1 of 1

Application +4 | -1

If

{\;^{n + 2}}{C_8}:{\;^{n - 2}}{P_4} = \frac{{57}}{{16}}

, then

n

is equal to

View answer and explanation

Correct option: A

19

Option A (19) is correct because solving the given equation involving combinations and permutations leads to n = 19.

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