Please solve the problem legibly. Don't explain on how to solve the problem, just solve it; I need solutions. Please send the graph here. Thanks

In a multi-stage absorber, find the number of theoretical stages (by graph and by equation) when an inlet air containing 10% acetone at 50kmol/h by mole is mixed with water at 100kmol/h to absorb 90% of the acetone. The process is to operate isothermally at 293.15K and a total pressure of 101.3 kPa