human
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?
assistant
How many bricks are in each wall? ** Each brick wall needs 30 x 50 = <<30*50=1500>>1500 bricks.
How many bricks will be used to make both walls? ** Thus, the two walls need 1500 x 2 = <<1500*2=3000>>3000 bricks.
#### 3000