The rate of flow of water from the tank is 20 liters per hour.
How to calculate the rate of flow
To calculate the rate at which water flows from the tank, we would have the following;
Total time spent from 13:00 to 18:30 = 5.5 hours.
The total amount of water that flowed from the time interval = 110 liters - 0.
The rate of flow of water from the tank is
The total volume/total time spent
= 110 liters / 5.5 hours = 20 liters/hour
The answer is not a decimal but a rounded figure. So, we can leave it as it is.