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JEE MATHEMATICS MCQ: PERMUTATIONS

1 Easy

1 of 1

Application +4 | -1

If

m_1

and

m_2

satisfy the relation

{ }^{m+5} P_{m+1}=\frac{11}{2}(m-1)\left({ }^{m+3} P_m\right),

then

m_1+m_2

is equal to

View answer and explanation

Correct option: C

13

Option C (13) is correct because solving the permutation equation leads to a quadratic equation with roots 6 and 7, and their sum is 13.

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