From the data given below, calculate the comparative works cost for a job in Factory A and Factory B : Factory A Factory B Method of payment of wages Halsey plan Rowan plan Standard time for the job 250 hours 240 hours Actual time taken by a worker to complete the job 200 hours 210 hours Hourly rate of wages 2.50 *3.00 Material cost for the job * 1,000 900 Factory overhead 150% of wages 33.4% of wages