Adam bought 15 apples on Monday. On Tuesday he bought 3 times that quantity. On Wednesday he bought 4 times the quantity he bought on Tuesday. What is the total quantity Adam bought on these three days?
On Tuesday, Adam bought 3 * 15 apples = <<3*15=45>>45 apples.
On Wednesday, Adam bought 4 * 45 apples = <<4*45=180>>180 apples.
Adam bought 15 apples + 45 apples + 180 apples = <<15+45+180=240>>240 apples on the three days.
#### 240