To find the number of ounces in 1 gallon, you can look at the information provided in the table. It shows:
- 5 gallons = 640 ounces
To find the number of ounces in 1 gallon, you can divide the total ounces by the number of gallons:
\[ \text{Ounces in 1 gallon} = \frac{640 \text{ ounces}}{5 \text{ gallons}} = 128 \text{ ounces} \]
Thus, there are 128 ounces in 1 gallon.