Amalgamated Ltd is a manufacturer of a product used in the motor industry. The product is assembled from various parts and the production operatives are paid on a piecework basis. The piece work scheme to be applied to all good production in a week is as follows: 0100units:101200units201300unitsOver300units$0.40perunit$0.48perunit$0.56perunit$0.64perunit Rejected production does not qualify for payment. It should be noted that only additional units qualify for the higher rates The following output was achieved by three operatives during the week ending 31 October 2005. Required: (a) Calculate separately the earnings of each of operatives A, B and C for the week ending 31 October 2005. (b) What are two advantages to an employer if they use a piecework scheme? (c) What is one disadvantage to an employer if they use a piecework scheme