Question

If $(n+1)!=12\times (n-1)!$ find the value of $n$

Answer 1

$(n+1)!=12(n-1)!\Rightarrow (n+1)\left(n\right)(n-1)!=12(n-1)!\Rightarrow (n+1)\left(n\right)=4\times 3\Rightarrow n=3$

Hence the correct value of above expression is $3$