Let \( x \) be the number of games Ahmadullah's team played last season. According to the problem, the current season's games (21 games) is 12 games more than \( \frac{1}{3} \) of the games played last season. We can set up the equation as follows:
\[ 21 = \frac{1}{3}x + 12 \]
To solve for \( x \), first subtract 12 from both sides:
\[ 21 - 12 = \frac{1}{3}x \]
\[ 9 = \frac{1}{3}x \]
Next, multiply both sides by 3 to eliminate the fraction:
\[ 9 \times 3 = x \]
\[ x = 27 \]
So, they played 27 games last season. The correct response is:
27 games