The school needs to build a wall with a length of 70m, a thickness of 24cm and a height of 2m. If 600 bricks are used per cubic meter, how many bricks are used in this wall?
学校要修建一道长70m、厚24cm高2m的围墙．如果每立方米用砖600块，这道围墙一共用砖多少块？
<gadget id="calculator">24 / 100</gadget>
<output>6/25 = around 0.24</output>

<gadget id="calculator">70 * (6/25) * 2 * 600</gadget>
<output>20_160</output>

<result>20_160</result>