$\displaystyle\frac{{{6}\ \text{ pints}}}{{1}}\cdot\frac{{{1}\ \text{ quart}}}{{{2}\ \text{ pints}}}={3}\ \text{ quarts}\usepackage{cmbright}\Huge\$ and $\displaystyle{4}\ \text{ cups}={1}\ \text{ quart}\usepackage{cmbright}\Huge\$ , so the total is $\displaystyle{3}+{1}={4}\ \text{ quarts}\usepackage{cmbright}\Huge\$ .