How Much More Money Did Mr. Johnson Make This Week Selling Erasers?

The problem of Mr. Johnson selling erasers can be a great example to explore some common issues in mathematical problem-solving, especially when it comes to real-life applications of math. Let's dive deeper into the problem and solve it step-by-step.

Understanding the Problem

The original question presents Mr. Johnson selling erasers for $3 each. It then states that he sold 96 erasers last week and 204 erasers this week. The question asks how much more money he made this week compared to last week. However, as pointed out in some critiques, the problem lacks vital information about Mr. Johnson's cost basis for the erasers. Without this information, it's impossible to determine the profit Mr. Johnson made.

Above all, this problem can be seen as a rudimentary example often used in educational settings, but it highlights the importance of providing complete information for accurate calculations. To solve this problem, we will assume that the price and the number of items sold are the only relevant factors to calculate the revenue.

Solving the Problem

First, let's calculate the revenue for each week:

Last Week: Mr. Johnson sold 96 erasers at $3 each.

$3 times 96 288$

This Week: Mr. Johnson sold 204 erasers at $3 each.

$3 times 204 612$

Now, to find out how much more money Mr. Johnson made this week compared to last week, we subtract the revenue of last week from the revenue of this week:

$612 - 288 324$

Therefore, Mr. Johnson made $324 more this week than he did last week.

Conclusion

By solving the problem in a straightforward manner, we determined that Mr. Johnson made $324 more this week. However, it is crucial to remember that in real-world scenarios, understanding and taking into account the cost basis is essential for accurate financial analysis.

Whether you're a student or a business owner, always make sure you have complete and accurate information before attempting to solve a problem or make financial decisions. This problem serves as a reminder of the importance of having all the relevant data to ensure the accuracy of your calculations.