Final answer:
To find the number of minutes the tap was open, we can use the concept of flow rate and the formula: number of minutes = total volume / flow rate. The tap was open for approximately 15 minutes.
Step-by-step explanation:
To find the number of minutes the tap was open, we can use the concept of flow rate. Flow rate is the amount of fluid that passes through a given area in a given amount of time. In this case, the flow rate is 2.5 liters per minute.
To calculate the number of minutes the tap was open, we can use the formula: number of minutes = total volume / flow rate. Substituting the values given, we have: number of minutes = 38.5 liters / 2.5 liters per minute.
Simplifying the expression, we get: number of minutes = 38.5 / 2.5 = 15.4 minutes. Rounding off, the tap was open for approximately 15 minutes. Therefore, the correct answer is Option D) 15 minutes.