## Elementary Technical Mathematics

$48\text{ ounces}$
Use the conversion rate $1 \text{pound} = 16 \text{ ounces}$ by multiplying $\frac{16\text{ ounces}}{1\text{ pound}}$ to obtain: $\require{cancel} 3\text{ lb} \\= 3\text{ lb} \cdot \frac{16\text{ ounces}}{1\text{ lb}} \\= 3\cancel{\text{ lb}} \cdot \frac{16\text{ ounces}}{1\cancel{\text{ lb}}} \\=48\text{ ounces}$