4. least-cost rule versus profit maximization marvin’s milk farm produces milk and sells it in a perfectly competitive market at $4 per bottle. the following table shows marvin's weekly total and marginal product schedules, using labor and capital. assume that labor and capital may be used independently; that is, one is not needed for the other factor to be productive. therefore, the total amount of milk that marvin's produces is obtained by adding together the amount of milk produced by labor and the amount of milk produced by capital. the table also shows total revenue and marginal revenue products (mrpmrp) of labor and capital. finally, assume that marvin's milk farm is a factor price taker in the labor and capital markets. labor costs $48 per week, and capital costs $84 per week. labor total product marginal physical product total revenue mrp of labor (number of workers) (bottles) (bottles) (dollars) (dollars) 0 0 1 24 24 96 96 2 42 18 168 72 3 54 12 216 48 4 62 8 248 32