The formula to calculate the questions per minute rate (QPM) is:
\[ QPM = \frac{Q}{T} \]
Where:
Let's say the total number of questions (Q) is 50 and the total time taken (T) is 25 minutes. Using the formula:
\[ QPM = \frac{50}{25} \]
We get:
\[ QPM = 2 \, \text{questions per minute} \]
So, the questions per minute rate is 2 questions per minute.