Question

3. If nC, =nC; then the value of 'n' is
a)3 b)3 c)4 d)5​

Answer 1

First things first if it is NC-2 then sorry you can never choose -2 things and if it is NC2 then N=7

as if NC2=NC5 then

N= 2+5

for your question although it never exist to choose -2 things the answer is 3 and you can never choose 5 things out of 3