If n 2 6 n 2 2 C P + – = 11, then n satisfies the equation

Question:

\text { If } \frac{\mathrm{n}+2}{\mathrm{C}_{6}}=11 \text {, then } \mathrm{n} \text { satisfies the equation: }

  1. $\mathrm{n}^{2}+\mathrm{n}-110=0$

     

     

     

  2.  $\mathrm{n}^{2}+2 \mathrm{n}-80=0$

  3. $n^{2}+3 n-108=0$

  4. $n^{2}+5 n-84=0$

Correct Option: 3

JEE Main Previous Year 1 Question of JEE Main from Mathematics Permutations And Combinations chapter.
JEE Main Previous Year Online April 10, 2016

Solution:

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