In a factory, two workmen A and B produce the same product using the same material. Their normal wage rate is aiso the same. They are paid bonus according to Rowan system. The time allowed to complete the prod- uct is 40 hours. A takes 25 hours and B takes 30 hours to finish the product. The factory cost of the product for A is * 193.75 and that for B is 205. The factory overhead rate is 1 per man-hour. Find the normal rate of wages and the cost of materials used for the product