Liquid Solution

The boiling point of a \(4 \%\) aqueous solution of a non-volatile solute \(\mathrm{P}\) is equal to the boiling point of \(\mathrm{X} \%\) solution of another non-volatile solute \(\mathrm{Q}\).
The relation between their Molar masses is \(\mathrm{M}_{\mathrm{Q}}=4 \mathrm{~Mp}\). What is \(\mathrm{X}\) ?