Fresh oilseeds having 25wt% solute and 1wt% solvent is to be leached at a rate of 2000kg/hr with pure solvent in a countercurrent leaching cascade. One kg of solvent is used per kg of feed. The overflow does not have any inert entrainment. If 85% of the solute is to be recovered in the overflow, calculate the composition and flowrate of the outlet product and determine the number of ideal stages required