SECTION B The following details are available regarding three products XY and Z A special machine is used to manufacture the three products and there are only 15,000 machine hours available. Product X uses 20 machine hours per unit. Product Y uses 5 machine hours per unit. Product Z uses 2 machine hours per unit. Required: i. Calculate the priority ranking of the product ii. Determine the desired production level and the maximum contribution that can be obtained. (15 marks)