Question 4 Three models A, B, C are to be assembled on a mixed line. Hourly production rates are 15, 10, 8 units/hr for model A,B, and C respectively. The work elements, elements times and precedence requirements for the models are given in table (3). a) Construct the precedence diagram for each model and the combined diagram. b) Assume line efficiency =1.0, reposition efficiency =1.0. Determine the number of workstations required and its balance efficiency. c) If each workstation requires (2.52m) space with at least (0.6m) clearance between each station. Find the total area required for the assembly line. Assume missing data