JEE Special | Vapour Pressure Of Volatile Questions | PYQ

If to a solvent (vapour pressure =p^(@)) , n moles of a non volatile solute are dissolved then the vapour pressure of the solution p is

Find the molality of a solution containing a non-volatile solute if the vapour pressure is 2% below the vapour pressure or pure water.

Vapour pressure of the solution of a non- volatile solute is always __.