please answer the below question

Q 1) A school cafeteria is operated by 5 personnel each performing one of the following activities with the average times shown below: Time (Seconds) Activity A. serve salad B. serve vegetables C. serve entree D. serve main dish E. collect payment (last activity) Activity A (i.e., serve salad) must be performed first, and activity E i.e., collect payment) must be the last step. Activity D (ie, serve main dish) must be performed after the two activities A, B. Q1.a) What is the maximum output per hour achievable by this system? (Draw the cafeteria layout) Q1.b) The school cafeteria want to achieve 180 output per hour, what will be the new layout ? Q1.c) Grouping activities together to form new jobs, what is the maximum output per hour achievable by this system using the five employees