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JEE MATHEMATICS MCQ: PERMUTATIONS

1 Easy

1 of 1

Application +4 | -1

If

{\;^{12}}{P_r} = 1320

, then

r

is equal to

View answer and explanation

Correct option: C

3

Option C (3) is correct because solving the permutation equation

{\;^{12}}{P_r} = 1320

leads to

r = 3

.

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