Anna is able to buy 5 more articles for $300 after the price of each article decreased by 15%. What is the new selling price of each article? Options:	A) $8	B) $10	C) $13.6	D) $22.9	E) $40
p = old price.   n = the number of items for $300 for p.   pn = (0.85p)(n + 5) --&gt; n = 0.85(n + 5) --&gt; n = 17.   New price = 300/(n + 5) = 13.6.   Answer: $13.6.
<result>C</result>
Anna is able to buy 5 more articles for $300 after the price of each article decreased by 15%. What is the new selling price of each article?