2.1L over 13hours after 5 hours 1.5 liters remain. Is there an adjustment needed what should be the adjusted flow rate

To determine if an adjustment to the flow rate is needed, we need to check if the remaining flow is on track to meet the target of 2.1 liters over 13 hours.

First, let's calculate the rate at which the liquid is flowing so far. In the first 5 hours, 1.5 liters were consumed. Therefore, the average flow rate for the first 5 hours is: 1.5 liters / 5 hours = 0.3 liters per hour.

Now, let's calculate the adjusted flow rate needed in order to meet the target of 2.1 liters over 13 hours. We know that after 5 hours, there will be 1.5 liters left to flow over the remaining 13 hours. So, the adjusted flow rate needed is: 1.5 liters / 13 hours = 0.1154 liters per hour (rounded to four decimal places).

To find the adjustment needed, we compare the adjusted flow rate to the current flow rate.
Adjusted flow rate: 0.1154 liters per hour.
Current flow rate: 0.3 liters per hour.

Since the current flow rate (0.3 liters per hour) is larger than the adjusted flow rate (0.1154 liters per hour), we can conclude that an adjustment is needed.

To find the adjusted flow rate, we subtract the remaining flow after 5 hours (1.5 liters) from the target flow (2.1 liters), and divide it by the remaining time (13 hours minus 5 hours = 8 hours).

Adjusted flow rate = (Target flow - Remaining flow) / Remaining time
= (2.1 liters - 1.5 liters) / 8 hours
= 0.075 liters per hour (rounded to three decimal places).

Therefore, the adjusted flow rate should be 0.075 liters per hour.