If a classroom is paved with square bricks with a side length of 40 cm, 275 pieces are needed. If the floor is paved with square bricks with a side length of 50 cm, how many square bricks are needed?
一间教室，用边长40厘米的方砖铺地，需要275块，如果用边长50厘米的方砖铺地，需要方砖多少块？
<gadget id="calculator">40 * 40 * 275</gadget>
<output>440_000</output>

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

<gadget id="calculator">440_000 / 2_500</gadget>
<output>176</output>

<result>176</result>