Joyce Nemeth bought each of her seven nephews a gift, either a DVD of the movie Blind Side or the latest Beyonce CD. The DVD cost $14.95 and the CD cost $16.88, and she spent a total of $114.30. How many of each DVD and CD did she buy?

Solution:

              14.95 (7-x) + 16.88x = 114.30

                 x = no.of CD = 5

                 No .of DVD = 2