A120 cy per hr maximum output pump is used to place the concrete for a 200 cy slab. the concrete is supplied by 8 cytransit-mix trucks arriving to the site on 12 min intervals. the concrete batch plant is located 5 miles from the site. averagetruck speed is 30 mph. each transit-mix truck takes, on average, 10 min to discharge. the placement crew size is 7 workers. average worker output is 5 cy of concrete per hr. (a) how long will the operation take? (b) how can the operation bereorganized more effectively?