The project manager had hoped to be able to complete the construction of a building prior to the start of the next season. After reviewing the activity duration estimates, it now appears that a certain amount of crashing will be needed to ensure the project completion before the start of the season. We assume that the maximal number of weeks for crashing is two weeks for each activity. Each activity in the first column of the following table precedes the corresponding activity$/$activities in the second column of the following table.

Given the following information, determine the minimumcost crashing schedule that will save five weeks off the project length.

$\backslash$table$[[$Activity$,$Precedes,$\backslash$table$[[$Duration$],[($weeks$)]],\backslash$table$[[$Crashing Cost$],[$First Week$]],\backslash$table$[[$Crashing Cost$],[$Second Week$]]],[$A$,$B$,11,$$$15,000,$$$25,000$