To find the rate of discharge, we need to calculate how much water was discharged over the given time and then divide it by the time to get the rate.

Step 1: Find the total volume of water discharged.

Initial volume = 108 L
Final volume = 94.5 L

Discharged volume = Initial volume - Final volume
Discharged volume = $108 \, \text{L} - 94.5 \, \text{L} = 13.5 \, \text{L}$

Step 2: Find the rate of discharge.

The time taken is 1.5 minutes. The rate is given by the formula:

$\text{Rate of discharge} = \frac{\text{Volume discharged}}{\text{Time taken}}$

$\text{Rate of discharge} = \frac{13.5 \, \text{L}}{1.5 \, \text{min}} = 9 \, \text{L/min}$

Conclusion:

The rate of discharge is $9 \, \text{L/min}$.

Would you like a more detailed explanation, or do you have any follow-up questions?

Related Questions:

1. How would the rate of discharge change if the time increased to 3 minutes?
2. If the tank initially held 150L of water, how much water would have been discharged after 2 minutes at the same rate?
3. How can we calculate the remaining volume of water in the tank if the discharge continues at the same rate for 5 minutes?
4. What is the rate of discharge in $\text{L/s}$ if the time is converted to seconds?
5. How can the rate of discharge affect the time needed to empty the tank completely?

Tip: Always ensure the units are consistent when performing calculations (e.g., time in minutes and volume in liters).