For the following construction project, the indirect cost is estimated to be $250/day. The relationships among the seven activities and their time-cost data are given below. Find the crashing alternative that will minimize the sum of direct and indirect costs.

 

1 B F A B D E F 2 C A 3 5 D Option 1 Option 2 Activity Duration Cost Duration Cost 4 E Option 3 Duration Cost (day) (S) (day) ($) (day) ($) 192 19,200 176 20,000 160 21,600 32 2,880 24 4,480 64 25,600 48 35,200 48 2,240 32 3,200 80 5,760 64 7,840 216 21,600 208 23,200 192 24,960 6