not in coding

Q.4. (a) Calculate the software cost for building, reusing, buying and contracting a software system by considering the following decision tree diagram. What decision would you like to take for this kind of software system? (12) *S. 38000 SIMPLEO.O ES 45000 DIFICULT (TO) BUILD RS 275.00 MINOR CHANGES (040) REUSE SIEPLE (020 RS 310.00 SYSTEM BUY MAIOR CHANGES (60) MINOR CHANGES (70) RS 490.00 CCM LEX OB PS 21000 CONTRACT XS400.00 MAJOR CHANGE (0:30) WITHOUT CHANGES (80) R$ 350.00 WITH CHANGES 409 350000