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The problem you're working on is related to a task allocation scenario using a **cost matrix**. The aim is to allocate tasks to different people in such a way that the total time to complete the tasks is minimized. You are asked to use the **Hungarian Algorithm** to achieve this optimal task allocation.

Here is the provided matrix:

\[
\begin{array}{|c|c|c|c|c|}
\hline
\textbf{Task} & \textbf{Georgio} & \textbf{Marcella} & \textbf{Trevor} & \textbf{Brittany} \\
\hline
\text{Invitations} & 4 & 6 & 4 & 3 \\
\text{Food} & 6 & 2 & 5 & 3 \\
\text{Drink} & 3 & 5 & 6 & 5 \\
\text{Decorations} & 4 & 2 & 5 & 6 \\
\hline
\end{array}
\]

### Problem Breakdown:

- **Objective**: Assign each friend (Georgio, Marcella, Trevor, and Brittany) to one task (Invitations, Food, Drink, and Decorations) such that the total time taken is minimized.
- **Method**: Use the **Hungarian algorithm** to solve this assignment problem.

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### Steps to solve using the Hungarian Algorithm:

1. **Row reduction**: For each row, subtract the smallest element in that row from every element in the same row.
2. **Column reduction**: After the row reduction, for each column, subtract the smallest element in that column from every element in that column.
3. **Assignment**: Try to assign tasks to each friend by finding a zero in each row and column such that no two zeros share the same row or column. If assignments cannot be made directly, modify the matrix further by adjusting the remaining elements and repeat.

Let me know if you'd like me to proceed with solving it step-by-step. Would you also like more details on any specific step or concept? 

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Here are some related questions to expand your understanding:

1. What is the Hungarian algorithm used for in mathematics?
2. How does the cost matrix affect the result of task assignment?
3. Can the Hungarian algorithm be used for non-square matrices? Why or why not?
4. How does minimizing task times benefit companies in real-life situations?
5. What is the difference between the Hungarian algorithm and other optimization methods?

**Tip**: The Hungarian algorithm is particularly useful in situations like job assignments, where you want to minimize or maximize certain criteria across multiple categories.

Aretha's baking business has grown and she now has a small factory and shop to make and sell her cakes. Aretha is planning an opening party for her shop and has four friends, Georgio, Marcella, Trevor, and Brittany to help. Aretha will assign each of her friends one of four things to organize: invitations, food, drink, and decorations. A cost matrix showing the estimated time each friend would take to complete each task is provided, and the task is to minimize the total time using the Hungarian algorithm.

Learn how to minimize task completion time using the Hungarian algorithm in an assignment problem. The problem involves four friends helping with invitations, food, drink, and decorations with a cost matrix provided. Suitable for Grades 10-12 students studying optimization and assignment problems.

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