1. The Hardrock Concrete Company has plants in three locations and is currently working on three major construction projects, each located at a different site. The shipping cost per truckload of concrete, daily plant capacities and daily project requirements are provided in the table below. Formulate this as a LP model and determine the least cost way to meet the requirements. Use QM to solve the LP. (9) / Hardrock Concrete Maatskappy het fabrieke in dire gebiede wat op drie verkillende projekte werk, met elke projek op 'n ander plek. Die vervoer koste per trok sement, daaglikse fabriek kapasiteit en daaglikse vereistes is gegee in die tabel wat volg. Formuleer die probleem as a LP model en vind die mees koste effektiewe manier om aan die vereistes te voldoen. Gebruik QM om die LP op te los. (8) From/To Pro Pro Pro Capa ject ject ject city A B C Plant 1 10 4 11 70 Plant 2 12 5 8 50 Plant 3 9 7 6 30 Require 40 50 60 ments