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 = 
<gadget id="calculator">30*50</gadget>
<output>1_500</output>
1500 bricks.
Thus, the two walls need 1500 x 2 = 
<gadget id="calculator">1500*2</gadget>
<output>3_000</output>
3000 bricks.

<result>3_000</result>