If a patient has a prescription for 120 mL of a syrup taking 15 mL daily, how many days will the syrup last?

To determine how many days the syrup will last, you need to divide the total volume of syrup by the daily dosage. In this case, the patient has a prescription for 120 mL of syrup, and they are instructed to take 15 mL each day.

The calculation is as follows:

Total volume of syrup (120 mL) divided by daily dosage (15 mL):

120 mL ÷ 15 mL = 8 days.

This calculation indicates that the syrup will last for 8 days. Thus, the reasoning aligns perfectly with the provided answer, as dividing the total amount by the daily intake allows for a straightforward determination of how long the supply will last.