SOLUTION:
Case: Best price between two stores Best buy and Black Friday deal in PC Richard and Son
Given: Original Price of Item is $179.99
Best buy discount is 20%
PC Richard and Son gives 10% off plus $20
Required: To find the final price of the item at both stores and select the cheapest
Method:
For Best Buy
Step 1: Calculate discount on original price
[tex]\begin{gathered} 20\%\text{ of 179.99} \\ \frac{20}{100}\times179.99 \\ 35.998 \end{gathered}[/tex]
Step 2: The final price at Best buy
[tex]\begin{gathered} 179.99\text{ - 35.998} \\ =\text{ 143.992} \end{gathered}[/tex]
For PC Richard and Son
Step 1: Calculate all discounts
10% of $179.99 + $20
[tex]\begin{gathered} \frac{10}{100}\times179.99\text{ + 20} \\ 17.999\text{ + 20} \\ 37.999 \end{gathered}[/tex]
Step 2: The final price at For PC Richard and Son
[tex]\begin{gathered} 179.99\text{ - 37.999} \\ =\text{ 141.991} \end{gathered}[/tex]
Final answer:
The final price price at Best Buy is $144
The final price at PC Richard and Son is $141.99
