# Suppose that a bookstore buys a textbook from the publisher for \$50. At what price should the bookstore mark the textbook so that it may be offered at a discount of 20% but still give the bookstore a 40% profit on the \$50 investment?

\$42 and if I'm not correct, you could then do your own homework for the right answer ðŸ“š.

4 People thanked the writer.
Hank Hank commented
It was \$87.50 dip sh*t :-)
Jann Nikka commented
Hank LOL you would be that for posting a question you knew the answer LOL. LOL oh my goodness you are hilarious.

hmmmmm.  This sounds suspiciously like homework.

1 Person thanked the writer.

To obtain the desired 40% profit,
the book needs to sell for \$50 + 40% * \$50
Our target price for the sale is 50 + 0.4*50
= 50 + 20
=\$70
We need the original price of the book
to be enough so that 20% off of that
price gives us \$70

Set P = the original price
The original price minus 20% of the original price must equal \$70
P - 20% * P = 70
P - 0.20P = 70
0.80P = 70
Divide each side by 0.80
P = 70/0.80
P = 87.5
So the books original price needs to be \$87.5

thanked the writer.