From the following particulars, calculate the total earnings of three workers who are paid wages under the Merrick's Differential System : Normal Piece rate (upto 83.33% of High Task Output) *5 per unit; High Task Output of workers for the week : A 32 units; B 37 units and C - 42 units. Also find out their wages if they are paid on the straight piece rate basis. 40 units per week