There are 15 students in the art club. By the end of each quarter, each student makes two artworks. If there are four quarters in a school year, how many artworks can the art club collect in two school years?
15 x 2 = <<15*2=30>>30 artworks can be collected in one quarter.
So in one school year, a total of 30 x 4 = <<30*4=120>>120 artworks can be collected.
Therefore, 120 x 2 = <<120*2=240>>240 artworks can be collected in two school years.
#### 240