The elevation in boiling point for \( 1 \) molal solution of non-volatile solute A is \( 3 \, \text{K} \). The depression in freezing point for \( 2 \) molal solution of A in the same solvent is \( 6 \, \text{K} \). The ratio of \( K_b \) and \( K_f \) i.e., \( {K_b}/{K_f} \) is \( 1 : X \). The value of \( X \) is [nearest integer]
