One square brick is used to pave the floor, and 50 bricks are used to pave 250 square meters on the first day; according to this calculation, how many square bricks will be used to pave 350 square meters on the second day?
用一根方砖铺地，第1天用50块铺了250平方米；照这样计算，第2天要铺350平方米，要用多少块方转？
<gadget id="calculator">250 / 50</gadget>
<output>5</output>

<gadget id="calculator">350 / 5</gadget>
<output>70</output>

<result>70</result>