Three workers A, B and C work in a Production unit. The following particulars are given below: Normal Rate per hour Rs4, Piece rate per unit Rs.3 and Standard Output per hour = 20 units. In a 50 hours week, the production of the workers is as follows: A= 500 units, B = 800 units, and C = 1300 units. Calculate the Earnings of the workers under Merricks Multiple Piece Rate System and Straight Piece Rate System