To determine how many pints per hour the hose fills the tub, we first need to convert the filling rate from ounces per minute to pints per hour.
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Find the amount filled in one hour:
- The hose fills at a rate of 4 ounces per minute.
- In one hour (which is 60 minutes), the hose will fill: \[ 4 , \text{ounces/minute} \times 60 , \text{minutes} = 240 , \text{ounces/hour} \]
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Convert ounces to pints:
- Since there are 16 ounces in 1 pint, we can convert the ounces per hour to pints per hour: \[ \frac{240 , \text{ounces}}{16 , \text{ounces/pint}} = 15 , \text{pints/hour} \]
Therefore, the correct answer is 15 pints per hour.