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3 votes
3 votes
A store is having a sale where everything is 25% off. A shirt has an original price of $25. When paying for the shirt you are offered an additional discount of 10% after the first discount is taken. What is the final sale price of the shirt?

User BigFatBaby
by
3.2k points

1 Answer

21 votes
21 votes

$16.88

1) Gathering the data we have:

All 25% off

Original Price $25

Additional discount 10%

2) So we can write it out an equation where x is the final price:


\begin{gathered} 25\cdot(1-0.25)\cdot(1-0.1)=x \\ 25\cdot(0.75)\cdot(0.9)=x \\ 18.75\cdot(0.9)=x \\ x=16.875\approx16.88 \end{gathered}

Note that on the first parentheses, we have the first discount. The additional discount on the second parentheses and the original price $25.

3) Thus the answer is $16.88

User Pixelmike
by
3.0k points