The school’s psychological counseling room needs to use the cartoon square floor tiles that students like to lay the floor. If you use floor tiles with a side length of 40cm, you need 75 pieces. If you use floor tiles with a side length of 50cm, how many pieces do you need?
学校的心理咨询室要用同学们喜欢的卡通正方形地砖来铺设地面，如果用边长是40cm的地砖铺地，需要75块，如果改用边长是50cm的地砖，需要多少块呢？
<gadget id="calculator">40 * 40 * 75</gadget>
<output>120_000</output>

<gadget id="calculator">50 * 50</gadget>
<output>2_500</output>

<gadget id="calculator">120_000 / 2_500</gadget>
<output>48</output>

<result>48</result>