Do it by making a graph operating line and such

Packed column absorption (transfer units) A mixture of air and acetone containing 2.6 mole \% acetone is to have 98% of the acetone removed by absorption into water in a packed column. The column operates at a temperature of 20C and at atmospheric pressure, for which conditions the equilibrium can be approximated by y=0.9x, where x,y are mole fractions. The gas flux (G/S) is to be 0.012kmols1m2 and the water flow rate is 1.5 times the gas flow rate. The solvent feed contains no acetone. Estimate the height of packing required, given that the value of Kya is 0.0169kmols1m3