(1) With reference to her reply to question 1813 on 11 September 2012, what mathematical formula is applied to calculate the average learner to teacher ratio in each province; (2) whether her department maintains a database of actual class sizes in each school; if so, (3) how many (a) separate classes, in each grade, have been calculated to exist in each province and (b) of these classes have in excess of (i) 40 learners, (ii) 60 learners and (iii) 80 learners; (4) whether her department has taken or is taking action to ensure that each province has a realistic plan in place to achieve target ratios within a reasonable time; if so, what are the details of such action?