Please show full crash cost evaluation :) Thankyou

A network for a project is shown below. Activity times, in days, are indicated by the figure that appears under each activity. 2 3 5 6 1 3 3 2 4 3 Utilising the cost data in the table below, indicate what activities should be crashed and to what extent, if the project duration must be reduced by three (3) days at minimum cost. What is the total additional direct cost involved in crashing the project by three (3) days? Activity 6 1-2 1-3 1-4 2-3 3-5 3-6 4-5 5-6 Normal Duration Cost ($) (Days) 4 400 6 500 4 300 1 400 350 260 500 2 300 Crashed Duration Cost ($) (Days) 2 460 2 700 2 460 1 400 2 450 2 300 2 700 1 450 mm N