how much money will they loose

Question

books: a book store bought 160 copies of a book from the publisher for $4,000.if the store gives away 2 books, how much money will they loose? icant figure this out

 

 

160      =        80     =  2

4,000               ?          ?

Answer 1

$4000 buys 160 books, so 1 book is worth 4000/160=$25. So two books are worth $50, which is the amount the store loses if it gives away 2 books.