please solve 12.6 using knapsak

12-6. In Example 12.3-1, determine the optimum solution, assuming that the maximum weight capacity of the vessel is 2 tons. Repeat the question for a weight capacity of 5 tons. 8 Example 12.3-1 A 4-ton vessel can be loaded with one or more of three items. The following table gives the unit weight, wi, in tons and the unit revenue in thousands of dollars, ri, for item i. The goal is to determine the number of units of each item that will maximize the total return. Because the unit weight wi and the maximum weight W are integers, the state xi assumes integer values only