Question 873803
This is one of the most common mixture for price exercise problems, that it deserves a dedicated lesson along with a general solution.  Study that lesson here and you will be able to solve all problems of this type:


<a href="http://www.algebra.com/tutors/mixture-price-two-part-both-parts-unknown.lesson?content_action=show_dev">Mixture: Two-Part, price or cost, both material amounts unknown </a>