1. Kassa & Sons Construction PLC has signed an agreement with Berhan International Bank for construction of head office building of G+4 with a total cost of 21,200 Birr (in thousands). Answer the following questions on the basis of the information given in the table below. Activity Predecessor Activity time ( Weeks) A None 5 B A A D C E B.C F E 4 G D, F 14 H D. G 12 H Total a. Construct the project network using Activity on Node (AON). b. Determine the critical path/ time duration c. Determine the Earliest Start, Earliest Finish, Latest Start and Latest Finish times 2. With considering project identification, Discuss about Top-down approach and Bottom-up approach 3. Briefly write about Activities (Steps) in Project identification and initial screening/ Techniques O