Incorrect. If $\displaystyle{j}=\usepackage{cmbright}\Huge\$ Julio's age, then $\displaystyle{3}{j}=\usepackage{cmbright}\Huge\$ his grandfather's age. The sum of these is 92, so $\displaystyle{j}+{3}{j}={92}\usepackage{cmbright}\Huge\$ . Remember also that the question is asking for the grandfather's age.