Given the partial project network below and the fact that F can be crashed three times if X_t = start time of Activity i, and Y_i = amount of crash time used for Activity i. a.Which of the following is correct? X_F $\ge$X_D + 10 - Y_D or X_F $\ge$ X_E + 10 + Y_E or Y_D, Y_E $\le$ 0 or X_F - X_D - X_E + 10 $\ge$ 3 b.Which of the following is correct? y_D $\le$ 3 or y_E $\le$ 3 or y_F = y_D + y_E or y_F $\le$ 3

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The Answer of Given the partial project network below and the fact that F can be crashed three times if X_t = start time of Activity i, and Y_i = amount of crash time used for Activity i. a.Which of the following is correct? X_F $\ge$X_D + 10 - Y_D or X_F $\ge$ X_E + 10 + Y_E or Y_D, Y_E $\le$ 0 or X_F - X_D - X_E + 10 $\ge$ 3 b.Which of the following is correct? y_D $\le$ 3 or y_E $\le$ 3 or y_F = y_D + y_E or y_F $\le$ 3

Given the Partial Project Network Below and the Fact That ≥\ge≥

Given the Partial Project Network Below and the Fact That $\ge$