Two 5 molal solution are prepared by dissoliving a non elecrtroyte non volatile solute separately in the solvents X nad Y The molecular weights of the solvents are $M_x\text{and}{M}_y$ respecitvely where
$M_x=\frac{3}{4}{M}_y$ The relative lowering of vapour pressure of the solution in is 'm' times that of the solution in y given that the number of moles of solute is very small in comparison to that of solvent the value of ''m'' is :

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