Two brick walls are being built. Each wall has 30 bricks in a single row and there are 50 rows in each wall. How many bricks will be used to make both walls?
Each brick wall needs 30 x 50 = <<30*50=1500>>1500 bricks.
Thus, the two walls need 1500 x 2 = <<1500*2=3000>>3000 bricks.
#### 3000