If \( \frac{(n+4)!+(n+3)!}{(n+2)!}=120 \), what is the value of (n)?

Correct answer: 7

Using \((n+4)!=(n+4)(n+3)!\), the numerator becomes \((n+3)![(n+4)+1]=(n+3)!(n+5)\). Thus, the expression simplifies to \((n+3)(n+5)=120\). For \(n=7\), this gives \(10\times12=120\), so the correct value is \(7\). For instance, \(n=6\) gives \(9\times11=99\), not 120. Exam tip: In factorial fractions, first factor out the common factorial term before simplifying.