In a scheduling set, if task G must be completed before task H, and task H must
Practice Questions
Q1
In a scheduling set, if task G must be completed before task H, and task H must be completed before task I, which of the following sequences is invalid?
G, H, I
H, G, I
G, I, H
I, H, G
Questions & Step-by-Step Solutions
In a scheduling set, if task G must be completed before task H, and task H must be completed before task I, which of the following sequences is invalid?
Step 1: Identify the tasks and their dependencies. We have three tasks: G, H, and I.
Step 2: Understand the dependencies: Task G must be completed before Task H (G -> H), and Task H must be completed before Task I (H -> I).
Step 3: Write down the correct order based on the dependencies: G must come before H, and H must come before I. So the correct order is G, H, I.
Step 4: Check the given sequence H, G, I. In this sequence, H comes before G, which violates the rule that G must be completed before H.
Step 5: Conclude that the sequence H, G, I is invalid because it does not follow the required order of tasks.
