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I blanked for a second on the pool volume and just anchored to whatever number felt right.
Start by clarifying the assumptions and breaking the problem into two parts: the volume of an Olympic swimming pool and the flow rate of a standard garden hose. Then calculate the time by dividing the volume by the flow rate, and discuss how you would validate or refine the estimate.
Pro tip: State your assumptions explicitly and round numbers to make mental math easy, but acknowledge that real-world factors like water pressure and hose diameter can significantly affect the answer. Show that you can iterate and adjust based on new information.
Ask clarifying questions to define 'Olympic swimming pool' and 'standard garden hose' in terms of volume and flow rate. Confirm whether the pool is filled to the brim and if the hose is running at full pressure.
Use known dimensions of an Olympic pool: 50 meters long, 25 meters wide, and 2 meters deep. Calculate volume as length × width × depth = 2,500 cubic meters, which is 2,500,000 liters.
Assume a standard garden hose delivers about 10-20 liters per minute (or roughly 500-1,000 liters per hour). Choose a reasonable middle value like 15 liters per minute for calculation.
Divide the pool volume by the flow rate: 2,500,000 liters ÷ 15 liters per minute ≈ 166,667 minutes, which is about 2,778 hours or 116 days. Present the result in a comprehensible unit (e.g., days or months).
Verify the calculation and discuss factors that could change the answer, such as water pressure, hose diameter, and pool filling regulations. Mention that in reality, it might take longer due to evaporation or other losses.
AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.