• # question_answer 28) If n is a natural number, then ${{9}^{2n}}-{{4}^{2n}};$ is divisible by A)  5                                B)  13            C)  both 5 and 13            D)  None of these

${{9}^{2n}}-{{4}^{2n}}$is divisible by $9-4=5$ & $9+4=13$