📊 GMAT Exam Prep

A project management software displays a 'Task Dependency' matrix. Rows represent 'Predecessor Tasks' (A, B, C, D) and columns represent 'Successor Tasks' (W, X, Y, Z). An 'X' in a cell indicates that the row task must be completed before the column task can begin. If Task B has an 'X' in the column for Task Y, and Task Y has an 'X' in the column for Task Z, but Task B has no direct 'X' in the column for Task Z, what is the implied relationship between Task B and Task Z?

A Task Z must precede Task B.
B Task B and Task Z can be performed concurrently.
C Task B is an indirect predecessor of Task Z.
D There is no dependency between Task B and Task Z.

✓ Correct Answer: Option C

Task B must be completed before Task Y, and Task Y must be completed before Task Z. This establishes an indirect dependency where Task B must be completed before Task Z.

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