A product whose total work content time = 50 min is to be assembled on a manual production line. The required production rate is 30 units/hr. From previous experience with similar products, it is estimated that the manning level will be close to 1.5. Assume that the uptime proportion and line balancing efficiency are both = 1.0. If 9 sec will be lost from the cycle time for repositioning, determine
(a) the cycle time and
(b) the numbers of workers and stations that will be needed on the line.