There are 8 fluid ounces in a cup. One pint has 2 cups, so it has $\displaystyle{2}\cdot{8}={16}\usepackage{cmbright}\Huge\$ fluid ounces. One quart has 4 cups, so it has $\displaystyle\text{4}\cdot\text{8}=\text{32}\usepackage{cmbright}\Huge\$ fluid ounces. Together there are $\displaystyle{16}+{32}={48}\usepackage{cmbright}\Huge\$ fluid ounces.