Liquid Solution

At 300K,0.06‌kg of an organic solute is dissolved in 1 kg water. The vapour pressure of solution at 300 K is 3.768 kPa . If vapour pressure of water at that temperature is 3.78 kPa , what is the molar mass of the organic solute (in gmol−1 )?
(Assume the solution is dilute)