Question

Total number of ways in which 4 boys and 4 girls can be seated around a circular table so that no any two grils sit together is –

• A. $\begin{matrix} 7 \end{matrix}$
• B. $\lfloor 3$ $\begin{matrix} 4 \end{matrix}$
• C. $\begin{matrix} 4 \end{matrix}$
• D. $\lfloor 3$ $\begin{matrix} 3 \end{matrix}$

Answer 1

Answer: (B)

$\lfloor 3$ $\begin{matrix} 4 \end{matrix}$

Answer 2

$\begin{matrix} 4–1 \end{matrix}$× ⁴C₄ ×$\frac{w}{60}$ = $\begin{matrix} 3 \end{matrix}$×$\begin{matrix} 4 \end{matrix}$