单选题Which of the following is an external source of information?

单选题A linear programming model has been formulated for two products, X and Y. The objective function is depicted by the formula C = 5X + 6Y, where C = contribution, X = the number of product X to be produced and Y = the number of product Y to be produced. Each unit of X uses 2 kg of material Z and each unit of Y uses 3 kg of material Z. The standard cost of material Z is $2 per kg. The shadow price for material Z has been worked out and found to be $2·80 per kg. If an extra 20 kg of material Z becomes available at $2 per kg, what will the maximum increase in contribution be?

问答题

问答题

单选题The following costs have arisen in relation to the production of a product: (i) Planning and concept design costs (ii) Testing costs (iii) Production costs (iv) Distribution and customer service costs In calculating the life cycle costs of a product, which of the above items would be included?