Question

$\begin{array}{l}\text{If}A=\left[\begin{array}{ccc}9& 10& 11\\ 12& 13& 14\end{array}\right]\text{and}B=\left[\begin{array}{ccc}11& 10& 9\\ 8& 7& 6\end{array}\right]\\ \text{then}A+B=\text{\_\_\_\_\_\_\_\_\_\_}\end{array}$

1. $\left[\begin{array}{ccc}20& 20& 20\\ 20& 20& 20\end{array}\right]$
2. $\left[\begin{array}{ccc}10& 10& 10\\ 10& 10& 10\end{array}\right]$
3. $\left[\begin{array}{ccc}10& 5& 10\\ 5& 10& 10\end{array}\right]$
4. $\left[\begin{array}{ccc}25& 10& 15\\ 15& 10& 25\end{array}\right]$

Answer: $\left[\begin{array}{ccc}20& 20& 20\\ 20& 20& 20\end{array}\right]$

Solution :-

So, correct answer is option-1, $\to \left[\begin{array}{ccc}20& 20& 20\\ 20& 20& 20\end{array}\right]$